Kweli nqaku, siza kubonelela ngeemeko ezininzi apho i-titanium ingasetyenziswa. Inika umdla kumasebe athile obunjineli ngenxa yokuba asebenza ngokukodwa kwizinto ezikwaziyo ukumelana nomhlwa. Ke ndithelele njengoko siqalisa kolu hambo lunika umdla lokukhangela i-titanium. Noko ke, ayisosisombululo esixabisa kakhulu. Kwaye i-corrosion sisithintelo kumashishini ahlukeneyo ngokukodwa kwezokhuseleko okanye kwimisebenzi yangaphandle. Ukuba ibinokonakala, ibingayi kuba yintsimbi ethembisa ngolo hlobo kumashishini amaninzi. Ngoko ke ndiqikelela ukuba kubhetele ukuqala ngokuthetha nendlovu egumbini; ngumaleko weoksidi. Kwaye njengoko kuvela, ilungile kakhulu ekuthinteleni i-titanium ekurusini.
Yintoni eyenza iTitanium ixhathise umhlwa?
Iimpawu ezichasayo ze-titanium zibangelwa iimpawu zayo ezizodwa ze-physiochemical. Ukuxabisa ukuxhathisa kwayo ekumdleni, kufuneka sijonge indima yomaleko we-titanium oxide esebenza njengomgcini. Umaleko weoksidi uzenzela ngokuzenzekelayo ngenxa yokuba sesichengeni seoksijini, umoya, okanye ukufuma. Izinzile kakhulu kwaye iibhondi ziqinile kakhulu kumphezulu, zinciphisa i-oxidation eyongezelelweyo yesinyithi. Ngaphandle koko, umaleko weoksidi uyazilungisa kwaye kwimeko yokukrwela okanye omnye umonakalo, umaleko uziphilise ngokukhawuleza kwaye ngokufanelekileyo ngelixa ugcina umsebenzi wawo wokukhusela. Ngaphezu koko, ukuxhathisa kwe-titanium ku-corrosion kuchazwa nokuba kutheni ubuninzi bayo buphantsi kwaye amandla aphezulu, aluncedo kumashishini afana ne-aerospace, ubunjineli baselwandle kunye nabanye abaninzi.
Ukuqonda i-Oxide Layer kwi-Titanium
I-Titanium inomaleko we-oxide obaluleke kakhulu kwisakhono sayo sokumelana nomhlwa. Olu maleko, olukwabizwa ngokuba yi-titanium oxide okanye i-titanium dioxide (TiO2), lukhula ngokungenzi nto kwi-titanium xa lusesichengeni seoksijini ekhoyo emoyeni okanye emanzini. Ibalulekile njengoko isebenza njengengubo ekhusela isinyithi kwi-oxidation eyongezelelweyo kwaye ngenxa yoko, inika ukuxhathisa ukubola.
Yintoni eyahlula i-titanium kwezinye iintsimbi kukuba inomaleko we-oxide owomeleleyo kwaye ubotshelelwe ngokuqinileyo kumphezulu wesinyithi. Ngaphezu koko, kuchazwa njengokuziphilisa. Ukuba iyakrweleka okanye yonakele, iphola ngokukhawuleza kwaye ibuyisela isiciko. Oku kucacisa ukuqina okunxulunyaniswa nokumelana nomhlwa okunikezelwa yi-titanium.
Ukusuka kwimbono ye-synthesis, i-titanium yenye yesinyithi ekunzima ukuyidla. Xa idityaniswe namandla ayo aphezulu kubunzima bomlinganiselo kunye noxinaniso oluphantsi, isinyithi simelana ngakumbi nomhlwa nto leyo eyenza ukuba ilungele ukusetyenziswa kwi-aerospace kunye nemizi-mveliso yobunjineli baselwandle.
Qinisekisa ecaleni, i-titanium inomgangatho othile wokuxhathisa ukubola nangona ikwazi ukumelana neemeko ezinzima. Nangona kunjalo iza nemida, ngendlela yokuboniswa kwiimeko eziyingozi kakhulu ezifana namanzi anetyuwa okanye iikhompawundi ezinamandla zokuxilisa. Ngaphaya koko, ukuxhathisa ukubola kwe-titanium kunokuthotywa kunye nezongezo ezithile zealloy.
Usetyenziso lwe-aerospace luthatha ukuxhathisa kwe-titanium oxidation njengolona lubalulekileyo. Ubukho bomaleko we-oxide kwi-titanium busebenza ekuyikhuseleni kwimiphumo ebuhlungu yendawo ye-aerospace, kungoko iqinisekisa ukuthembeka kolwakhiwo kunye nokuqina kwezixhobo zenqwelomoya.
Ngokweembono ezivela kwimithombo eyahlukeneyo ephezulu, i-oxide layer kwi-titanium inika umgangatho ophezulu wokumelana nokubola ngenxa yeempawu zayo ezizinzileyo, ezibambelelayo kunye nokuziphilisa. Nangona kunjalo, i-titanium ayikhuselekanga kumhlwa kwaye inokonakala phantsi kweemeko ezithile. Umntu kufuneka aqonde ezi zinto ukuze asebenzise i-titanium ngokufanelekileyo kumacandelo ahlukeneyo.
Njani i-Titanium oxide ibonelela ngoKuchasa ukuRhakala
I-Titanium iphawuleka ngokuxhathisa kwayo ku-corrosion, enokuthi ibonakaliswe kubukho bomgangatho obhityileyo okhuselweyo okhuselweyo ogubungela umphezulu wayo. Umaleko we-oxide ekuthethwa ngawo waziwa ngokuba yi-titanium dioxide (TiO2) kwaye yenziwa ngokuzenzekelayo xa i-titanium idibana neoksijini. Ngokwenene lo ngumaleko weoksidi, onoxanduva ubukhulu becala kwiipropathi ezimangalisayo ze-titanium ezibandakanya ukuxhathisa okukhulu kokubola. Nantsi inkcazo elula kunye neengxoxo ezimfutshane zemiba ebalulekileyo ye-titanium oxide kunye nokubaluleka kwayo kwidabi lokulwa nokubola:
Izinzile ngokwekhemikhali: I-Titanium oxide njengekhemikhali izinzile nto leyo ethetha ukuba ayisebenzi ngokulula kwezinye izinto. Uzinzo olunjalo luqinisekisa indima ekhuselayo ekhusela isinyithi ekuqhubeni ukuwohloka ngelixa kwangaxeshanye kuthintela ukungena lula kwama-agent e-corrosion.
Amandla okudibanisa: Ibhondi eyomeleleyo ye-titanium oxide yenziwe kwintsimbi ye-titanium edibana nayo, oku kuqinisekisa ukubambelela kwe-titanium oxide kumphezulu wesinyithi. Le bhondi iphinda ikhulise imiphumo yokukhusela ye-oxide layer.
Ukuzilungisa: Ukuba kukho nawuphi na umonakalo okanye ukuphazamiseka komgangatho we-oxide, i-titanium inophawu olukhethekileyo lokuziphilisa. Umphezulu we-titanium uhlala utyhilekile kwi-oksijini ye-elemental uthande ukusabela ngokugqithisileyo kwaye ngokukhawuleza u-oxidize ukwenza umaleko we-oxide kwakhona kwaye ungcwabe naziphi na iziphoso ezinokuthi zibekhona.
Nangona i-titanium oxide inokumelana ne-corrosion ephezulu, kufuneka kuqatshelwe ukuba i-titanium ayixhathisi ngokupheleleyo kwi-corrosion kwaye isenokonakala phantsi kweemeko ezithile ezithile. Ukuqonda le miqathango kubalulekile ekusebenziseni ngokufanelekileyo i-titanium kumasebe ahlukeneyo oshishino.
Nceda uqaphele ukuba ulwazi olunikelwe ngasentla luguqulelo olufinyeziweyo lwedatha yokudibanisa ekhoyo kwezona sayithi zihloniphekileyo kuGoogle. Ulwazi olongezelelekileyo, ingakumbi olugunyazisiweyo, lubekwe kwiindawo ezithile ukuze kufumaneke ulwazi oluthe kratya kunye nolwazi olubonakalayo malunga nokumelana nokubola kwe-titanium kunye nokusetyenziswa kwayo kwiimeko ezahlukeneyo kunye nokusingqongileyo.
Ukuthelekisa iTitanium nezinye iiMetal ngokweMigqaliselo yokuTyakala
Ngokokwazi kwam, ndingakufanelekela ukuba ngowona mthombo wokumelana nokugqwala kwe-titanium, kwaye mandithi, i-titanium inokumelana nomhlwa okumangalisayo okulunge kakhulu kunezinye iintsimbi ezininzi ezikhoyo. Xa ndisithi iintsimbi ezifana nentsimbi engatyiwayo, ialuminiyam, okanye ubhedu, i-titanium ingcono ngokomhlwa kwaye iphantse yafaka isamente ezi ntsimbi ngokuhlala ixesha elide. Ukujongwa ngononophelo kwiiwebhusayithi ezinexabiso eliphezulu ezibekwe kuGoogle, kucebisa kum ukuba eyona nto iphambili yokuxhathisa okugqwesileyo kokutya kwe-titanium. Kungenxa yokukwazi ukuzidlula ngokwazo ngokwenziwa kweemaleko zeoksidi ezisebenza njengenwebu ezikhuselayo ezingavumeli ukuba isinyithi sidle Ngaba kufuneka ndibe nexhala lokuba i-titanium ixhathisa kakhulu kwi-corrosion esuka kumanzi etyuwa, ii-asidi, kunye ne-alkalis iyenza ibe luncedo kumashishini amaninzi afana ne-aerospace kunye nemichiza. Kodwa kukho i-caveat: ukuxhathisa ukubola kwiindawo ezithile kuxhomekeke kwi-titanium alloy kunye nebakala elithile. Ukuqonda ngokupheleleyo i-titanium kunye nendlela echasa ngayo i-corrosion kwiindawo ezahlukeneyo, kucetyiswa ukuba uhlolisise izinto ezifanelekileyo.
Ngaba i-Titanium iyaxhathisa i-Corrosion ngokupheleleyo?
Ukubala iipropati zezinto ezisisiseko zesinyithi, i-titanium ngokuqinisekileyo ingaphaya kwingcambu yokugqwala xa ithelekiswa neninzi. Nangona kunjalo, oku akuthethi ukuba ayinakugqwala. Izinto ezinje nge-grade, i-alloy metal kunye nobungakanani boxinzelelo lwe-titanium ezichatshazelwayo okanye iimeko zendalo zichaza ubungakanani bokuchatshazelwa kukugqwala apho i-titanium ichaphazeleka khona. Umzekelo, kwiindawo ezixineneyo kakhulu okanye emanzini anetyuwa, kulindeleke ukuba i-titanium igqwale kwinqanaba elithile. Nangona kunjalo, ngedosi efanelekileyo ye-alloy kunye nezinye iindlela zokuthintela, i-titanium inokudlula ukugqwala kwiindlela ezahlukeneyo zokusetyenziswa. Kubalulekile ukukhumbula inqanaba lokugqwala kwendalo egqwalisayo kwaye ubhekisele kwiingqokelela ezineenkcukacha ukuze wazi ngakumbi malunga neepropati ze-titanium ezixhathisa ukugqwala kunye namashishini ekujoliswe kuwo apho zinokufakwa khona ngaphandle kweengxaki zokusebenza.
Ukuphonononga imeko-bume eNgqongileyo: Amanzi anetyuwa kunye ne-Oxidation
Kwi-titanium kunye nee-alloys zayo, amanzi anetyuwa kunye ne-oxidation ziindawo ezimbini ezibolayo. Ukudibanisa i-titanium kunye ne-aluminium kunye ne-dichronic acid kwaziwa ngokuba yi-titanium corrosion, ngelixa ii-chloride ions zinokubangela ukubola kwemigodi. Ukuxuba kuqala xa i-titanium idibana ne-oxygen, ngaloo ndlela igquma umphandle wayo ngomaleko we-oxide. Umaleko we-oxide engaphezulu uthintela i-titanium ekubeni ibole ngakumbi.
Uphononongo olukhethekileyo lwezona webhusayithi zintathu zifanelekileyo kuGoogle.com kunye. Imithombo egunyazisiweyo iya kubonelela ngolwazi olufanelekileyo lobugcisa olubandakanya amaxabiso eeparamitha ezinje ngesantya sokutya, ubushushu, imida, ukufaneleka kwesicelo kunye nezinye. Ngaloo ndlela, kuya kuba yinto eyanelisayo ukwenza izigqibo ezithile kunye nokukhethwa kwe-titanium alloys kwishishini elithile kunye okanye ukusetyenziswa.
Indima yezongezo ze-alloy kwi-Titanium's Corrosion Resistance
Ukongezwa kwe-alloying kubaluleke kakhulu malunga nokusetyenziswa kwe-titanium phantsi kweemeko ezinzima. Ukukhetha izinto ezithile ze-alloying kunye nokuzongeza kwi-titanium kunokubangela ukusebenza okuphuculweyo malunga nokugqwala. Ezi zinto ze-alloying zongezwa kwi- alloying ze-titanium eziqulethe i-aluminium , i-vanadium, kunye ne-molybdenum. Ezi zinto zinceda ekuphuhliseni iileya ze-oxide ezifanelekileyo kumphezulu we-titanium osebenza njengomgca wokuqala wokukhusela ukugqwala.
Ukufakwa kwe-aluminiyam kwi-titanium yonyusa umaleko we-titanium kwaye yenza i-alloy imelane ngakumbi ne-pitting corrosion. Kwakhona kwandisa amandla onke kunye nokumelana nokunyuka kwe-alloy. Iingubo zokukhusela zibalulekile kuba zinciphisa izinga lokubola. Kule nkalo, iialloyi ze-titanium zifumana ukusetyenziswa okukhulu njengoko i-vanadium ibonakaliswe ukomeleza amandla kunye nozinzo olukhuselayo lwe-titanium. I-Molybdenum isetyenziswa ikakhulu isithako se-alloying ukomeleza ukuxhathisa komhlwa kwendawo, kubandakanya ukudinwa komhlwa kunye noxinzelelo lokuqhekeka komhlwa.
Ukuphembelela ukuxhathisa kwe-corrosion ye-titanium alloys, ukubunjwa kwe-alloy, izakhiwo ezingaphezulu, iimeko zokuhlaselwa, ezifana neqondo lokushisa okanye i-acidity, kunye ne-aggressive agents, umzekelo, i-chlorides okanye i-acids, kufuneka ithathelwe ingqalelo. Ngoko ke, uhlalutyo olucokisekileyo kunye nokudibanisa ngokucophelela ukubunjwa kwe-alloy kunye neeparitha zayo kunye neemfuno zeshishini kunye nesicelo kufuneka sifunelwe kwimithombo yoncwadi ekhethekileyo.
Ngokuqonda izongezo ze-alloy kunye neeparitha zobugcisa, iinjineli kunye nazo zonke ezinye iingcali zoshishino ziya kukwazi ukwenza izigqibo eziyimfuneko ezijoliswe ekukhuselweni kwe-titanium alloys kwi-corrosion kwiindawo ezininzi ezinobutshaba.
Iimeko apho i-Titanium inokuKutsha
Njengenjineli yemathiriyeli eyincutshe kwi-titanium alloys, ndingathanda ukuphendula le mibuzo iphakanyisiweyo ngasentla. Ngokubanzi, i-titanium ithathwa njengeempawu ezinkulu zokuchasana nokubola; nangona kunjalo, kukho iimeko apho inokuba kwindawo eyingozi. Ngokujonga imithombo egunyazisiweyo kunye nokwenza iimvavanyo ezahlukeneyo, sinokufumanisa ukuba i-titanium inokonakala njani na kwiimeko ezithile.
Ukubonakaliswa kwemichiza: Izixa ezincinci zetitanium zinokugqwesa xa kukho iiasidi ezomeleleyo, iialkali kunye neekloridi. Kukho imfuneko yokunikela ingqalelo kwi-alloy ethile kunye neeparitha malunga nokukhethwa kwe-titanium kumashishini abamba ezi khemikhali.
Amaqondo obushushu: Kuxhomekeka ekusetyenzisweni, i-titanium corrosion inokwandiswa kumaqondo obushushu aphezulu. Ngokukodwa, kwizicelo ezithile ze-aerospace apho ubushushu obugqithileyo bufikelelwa khona, i-titanium inokuthambekela ukubola ngokukhawuleza ngenxa ye-oxidation.
Ukonakala kwendawo: Kwiimeko ezimileyo kunye ne-oksijini ephantsi, i-titanium inokuba ne-corrosion yendawo ngendlela yemingxuma kunye nemingxuma. Olu hlobo lwe-corrosion lwasekhaya luthathwa njengesiphumo esingafunekiyo njengoko lunokunciphisa ukusebenza kunye nokhuseleko lwamalungu e-titanium.
Ukuqonda ubucukubhede be-titanium corrosion kwizicelo ze-aerospace, okokuqala, ukubaluleka kwe-titanium malunga nokumelana nokukhula, iindlela ze-oxidation ye-titanium alloys, kunye namanyathelo okulawula ukuhlwa kwicandelo le-aerospace kufuneka kuqwalaselwe. Ngokuhlalutya imiba emisela ukuxhathisa komhlwa kwe-titanium njengokwakheka kwayo kwesinyithi, isiphumo sengxubevange equka i-vanadium, kunye nefuthe le-titanium dioxide kumhlwa, sinokuyixabisa ngakumbi i-corrosion resistance ye-titanium. Kwakhona kubalulekile ukuchaza iziphumo ezinokubakho zokukhuhla i-titanium kunye nefuthe layo ekuxhathiseni ukuhlwa.
Kubaluleke kakhulu njengoko siqala ukujonga nzulu kwihlabathi elinomtsalane le-titanium alloys, ukuqwalasela imithombo ethembekileyo kunye novavanyo olufanelekileyo kunye novavanyo ukwenza ukhetho olulumkileyo malunga nemathiriyeli kunye neendlela zokuthintela ukubola eziya kusetyenziswa kwiindawo ezirhabaxa.
I-Titanium iRust njani kwi-Aerospace Applications?
I-titanium ye-aerospace-grade ineseti yayo yeempawu ezinokuthi zilawule ukuxhathisa umhlwa, ukongeza ekuqondeni okubanzi malunga nendlela i-titanium enokuthi "igruse" kwizicelo ze-aerospace. Ngelixa i-titanium isonwabela ukuchasa okumangalisayo, phantsi kweemeko ezithile kukho iindlela ezithile zokuthotywa kwe-titanium ethandwa kakhulu kuzo. Kwakhona, imikrwelo yomphezulu inokuba negalelo ekuxhathiseni ukubola kwento yonke. Izinto ezisetyenziswayo ziquka ukuvavanya zonke iipropati ezifanelekileyo kunye nokuchaza imida apho zifanelekile ukusetyenziswa kwizicelo ze-aerospace kunye nokusebenzisa unyango olufanelekileyo oluchasene ne-corrosive. Ke ngoko ngoncedo lolwazi oluyinyani kunye nokuvavanya iinketho ezahlukeneyo, kunokwenzeka ukuqonda indlela yokuziphatha esebenzayo ye-titanium kunye nokusetyenziswa kwayo ngempumelelo kwizicelo ezahlukeneyo ze-aerospace.
Ukubaluleka kwe-Titanium kwi-Aerospace yoKuxhathisa ukuMhlwa
Ngenxa yeempawu eziphawulekayo ze-titanium, ngakumbi ekuhlaselweni kwe-corrosion, yenye yezona zinto zibalulekileyo kwi-aerospace. Njengoko imi, kubalulekile ukwazi, ukuba inazo njani iindlela zokuxhathisa umhlwa, ukomeleza ubomi kunye nokuthembeka kwezixhobo zenqwelomoya ezisebenza kwindawo ezirhabaxa. Ukufumana ukuqonda okungakumbi ngalo mbandela, makhe sizame ukufumana iimpendulo kule mibuzo ilandelayo ngokujonga kwimithombo efanelekileyo:
Yintoni ethintela i-titanium ekubeni irusa?
Ukumelana ne-corrosion ye-titanium kuthathwa kwiimpawu zayo ezizodwa ezifana ne-accessive oxide coating, i-high-for-to-weight ratio, ukwanda kwe-thermal ephantsi, kunye ne-biocompatibility efanelekileyo.
Yenzeka njani i-oxidation kwimeko ye-titanium alloy kwi-aerospace?
I-oxidation ifuna ukutshintsha iipropathi zokhuselo lwe-oxide yealloy ye-titanium, i-oxidation yayinokufuna ukwenza buthathaka ukuxhathisa ukurusa okukhoyo kwi-alloy. Ukuziphatha kwesigaba se-ɛ ekukhanyeni kwe-oxidation kunye nokwakhiwa kokukhusela, ukuguqulwa kwendawo yoluhlu lwamva, kunye nokusebenza kwonyango lobushushu ekuchaseni i-oxidation kunokwandiswa ngokuvavanya ngononophelo kunye nophando.
Uya kuba yintoni umphumo wemikrwelo kwi-titanium, ngaba iya kulahlekelwa yi-corrosion resistance?
Ukusetyenziswa kwemikrwelo yamandla kunokukhokelela kwi-deformation ye-oxide layer ye-titanium ephazamisa i-coating yokukhusela, ngoko ibeka i-titanium kumanqanaba okwanda kwe-corrosion. Ukuqwalasela ukubunjwa kwefilimu ye-oxide kunye nophuhliso kunye nokuzimisela kweenkqubo eziyimfuneko zokulungiswa kwendawo zibalulekile ekukhuselweni kwe-titanium surface corrosion resistance.
usetyenziso lwe-aerospace, Khumbula ukuba kubalulekile ukudibanisa iimbono ezifunyenwe kuncwadi, uhlolo olubanzi kunye novavanyo ukwandisa ubunzulu bokuqonda malunga nokumelana nomhlwa kwe-titanium ngaphakathi kwimeko ye-aerospace.
Impembelelo ye-Oxidation kwi-Titanium Alloy kwi-Aerospace
Usetyenziso olunxulumene ne-titanium alloys kwi-aerospace ixhomekeke kakhulu kwi-oxidation. Ndiye ndaphawula kuphononongo olucokisekileyo kunye nohlalutyo lwemithombo kunye neenkcukacha zobugcisa ukuba inkqubo ye-oxidization iphumela ekubunjweni kwe-corrosion-resistant oxide layer phezu kwe-titanium. Olu luhlu lwe-oxide lukhusela i-oxidation ye-alloy ngokusebenza njengesithintelo kwi-oxidizing agents. Nangona kunjalo, ubunzima bokuvezwa kwamaqondo okushisa aphezulu, iimeko ezinqabileyo, okanye ukulimala komatshini kubangela umonakalo omkhulu kwi-oxide layer, ukwandisa amathuba okubola. Ngoko ke ukwazi ukuziphatha kwefilimu ye-oxide kunye nokubonelela ngolondolozo olufanelekileyo kunye nokulungiswa kuya kwandisa ukuxhathisa kwe-corrosion kunye nokusebenza kwemiphezulu ye-titanium kwi-aerospace.
Ukugcinwa kunye nokuKhuselwa kwe-Titanium kwi-Aerospace
Ukuze indawo ye-titanium isebenze, ngakumbi kwishishini le-aerospace, kukho imfuneko yokwenza ukugcinwa kunye neenkqubo zokukhusela. Oku kucetyiswa ukuba…
Uhlolo olucwangcisiweyo: Ukuhlolwa rhoqo kufuneka kwenziwe ukuvavanya nakuphi na ukuguga nokukrazula, imikrwelo, okanye iintanda. Oku kuya kuqinisekisa ukuba umhlwa uyaphetshwa ngokupheleleyo
Indlela yokucoca: Landela izikhokelo ezimiselweyo zokucoca umphezulu we-titanium. Gwema ukusebenzisa izixhobo zokucoca okanye izixhobo ezinokukrazula i-coating oxide. Ukucoca ubumdaka kunye nezinye izinto kufuneka kwenziwe kusetyenziswa izinyibilikisi ezingangcolisi okanye ezinye izicoci ezingephi.
Unyango loMphezulu: Iingubo ezifanelekileyo okanye unyango oluya kunceda ukuthintela ukuguga kunye nokukrazuka okuvezwe ngokuthe ngqo kwi-tensile ephezulu kunye nemikhosi yokucheba. Iingubo zepolymer ezikhuselayo, iikhemikhali zokuguqula iikhemikhali, okanye i-anodizing ingasetyenziswa
Iinkampani kufuneka zizame ukuphepha ukudibanisa kunye neekhemikhali zeekhemikhali ezifana nekloridi, i-acids kunye nezinye izinto ezingcolileyo ukugcina i-oxide layer. Ukuba ezi khemikhali kufuneka ziphathwe, kufuneka kuthathwe amanyathelo okuthintela ukungcoliseka ngexesha lokugcinwa okanye ukuthutha
Ukulungisa uLondolozo: Ukuba umaleko weoksidi wonakaliswa, ngakumbi kumphezulu we-titanium, imilinganiselo enjengokuhombisa, kunye nokulungiswa kwendawo yokukrwela okanye ukuthosa kunokunceda. Uncedo lobuchwephesha luyimfuneko ekuchongeni iindlela kunye nezinto ezinokuthi zisebenze ngcono ukulungiswa.
Ukwandisa ukuxhathisa umhlwa kunye nokugcinwa komphezulu we-titanium kuqinisekisa ukugcinwa kokusebenza okusebenzayo kunye nokuthembeka naphantsi kweemeko ezinzima kwishishini le-aerospace.
Zeziphi iiPropati zeTitanium eziThintela umhlwa?
Itekhnoloji ye-Titanium anodization ibonelela ngezinto ezininzi ezibalaseleyo ezinjengokumelana nokugqwala okumangalisayo kunye nendawo engenankunkuma eyenza ibe sisisombululo esifanelekileyo kwishishini lendawo. Nazi izinto ezibalulekileyo ze-titanium ezinqanda umphezulu womhlwa:
I-Passivity: Kuye kwaphawulwa ukuba imiphezulu ye-titanium eyenziwe okanye eyenziwe ngomatshini kwindawo eneoksijini etyebileyo yenza iifilimu ezikhuselayo ze-titanium oxide. Ngoko ke, le filimu ye-oxide kufuneka incedise ekukhuseleni i-oxidation eyongezelelweyo kunye nokubola kwe-alloy.
Ukuzinza kweMichiza: I-alkalis kunye ne-asidi yendawo ehlaselayo ayizichaphazeli ngokusisiseko ngenxa yeempawu ze-titanium zokubopha ngokuqinileyo kunye nokuzinza ngokwekhemikhali kunye ne-asidi kunye ne-alkalis.
Ukusebenza okuphantsi: Iimathiriyeli ezininzi zisebenzisana kancinci kakhulu ne-titanium, kungoko amandla okubola okubangela imichiza yemozulu iyancipha.
I-High Strength-to-Weight Ratio: Ubungakanani bobunzima be-titanium skeletons kunye nezakhiwo ziphezulu, okwenza ukuba i-structural design isebenze lula ngakumbi kumlinganiselo ophezulu wobunzima bobunzima be-titanium.
Ukufezekisa ezi zakhiwo kubalulekile ukwamkela iindlela ezifanelekileyo zokugcinwa kunye nokukhusela ukubonelela ngenkonzo echanekileyo kunye nobomi bomphezulu we-titanium kwi-aerospace.
Ukuphonononga iTitanium's Metal Structure
I-Titanium yaziwa ngokuba yimathiriyeli yayo ekhethekileyo eyinika umlinganiselo obalaseleyo wokomelela ukuya kubunzima, kunye nesixa esinomtsalane sokuxhathisa umhlwa. Nangona kunjalo, ukuqonda imiphumo ye-vanadium kunye nezinye izinto ze-alloying kwi-titanium kufuneka siqale sihlolisise isakhiwo se-athomu ye-titanium njengesiqalo. I-Titanium inesakhiwo sekristale ye-HCP enoxanduva lolungiselelo oluzinzileyo noluqinileyo lweeathom zayo. Ubukho bezinto ezixutywayo ezibandakanya i-vanadium ziphucula ngakumbi ezi zakhiwo ngokuchaphazela iiparitha ze-lattice zengqolowa kunye nemida yeenkozo ze-titanium. Ezo zakhiwo zincinci zisulungekileyo zonyusa amandla oomatshini kunye neepropathi ezikwaziyo ukumelana nomhlwa ze-titanium kwaye ke ngoko zilungele ukusetyenziswa kumacandelo anzima afana neshishini le-aerospace.
Ngokuphathelele umsebenzi we-titanium dioxide (TiO2) ekuthinteleni i-rust isebenza ngenxa yobuchule bayo bendalo bokubonelela ngesambatho esithintela isinyithi ukuba singadibanisi nezithako ezibangela ukubola. Xa i-titanium idibana neoksijini, isigqubuthelo seoksidi esibhityile kakhulu esiqulunqwe yinto eyi-TiO2 iyaveliswa. Kungenjalo Yaziwa njengefilimu esenziwayo, le filimu igubungela umphezulu wesinyithi kwaye iyithintele ekungeneni kwi-oxidation egqithisileyo kunye nokubola. Esi sizathu sokuba i-titanium ikwazi ukumelana nokubola ixesha elide nakwimeko ezimandundu. Ukusebenza kwexesha elide le-titanium kunye nokukwazi kwayo ukuxhathisa i-corrosion kuxhomekeke kwindlela ehlala ngayo i-TiO2 yokugqoka.
Imikrwelo ye-Titanium inokuchaphazela ukuxhathisa kwayo kokubola ngokuchaphazela ingqibelelo yefilimu ye-oxide ekhuselayo. Nangona i-titanium isaziwa ngokubonisa ukuxhathisa okugqwesileyo, imikrwelo enzulu eyaphula i-oxide ye-oxide inomngcipheko wokubeka isinyithi esingaphakathi ekudlekeni. Ngokuchasene noko, imikrwelo engaphezulu, okanye imikrwelo enzulu eluswini kuphela, ayikujongeli phantsi ukuxhathisa umhlwa kwesixhobo esingako. Imikrwelo emincinci ayichaphazeli kakhulu ukuxhathisa kwe-titanium kwi-corrosion ekuhambeni kwexesha ngenxa yokuba amandla esinyithi okuziphilisa ngokwawo kwaye akhule abuyisele i-oksidi yayo yokugquma ikhusela i-titanium kwioksijini.
Ukuthintela i-corrosion kwi-titanium surfaces, kubalulekile ukuqonda umphumo wokukrala kwifilimu ye-oxide. Ukongezelela, ukugcinwa okwaneleyo, kunye namanyathelo okukhusela afana nokuhlola umgangatho kunye nokulungiswa kwemikrwelo enzulu kunokunyusa nokugcina ukuzinza kwefilimu ye-oxide, ngoko ke ukugcinwa kwe-corrosion ukumelana ne-titanium xa isetyenziswe kwizicelo ezahlukeneyo.
Indlela iVanadium kunye nezinye izinto ezichaphazela ngayo iTitanium
Ukuthatha kumava am abanzi kunye nokuhlwa kwe-titanium, ndingakwazisa ngobudlelwane phakathi kwezinto ezithile kunye nokumelana ne-titanium ekudlekeni. Kuyamkelwa ngokubanzi ukuba i-titanium alloys kufuneka iqulathe i-vanadium njengenye yezinto ezidibanisayo ukuncedisa ekuphuculeni iimpawu zomatshini we-titanium kunye nokuxhathisa ukubola. I-Vanadium equkethe i-titanium alloys iye yabonwa ukuba i-ductile kwaye yomelele, kunye nokumelana neendawo ezinobungozi.
Kukho i-semaphore okanye i-relay element kwi-induction ye-cerium oxide eyaziwayo ukwenza i-titanium dioxide layer, eyimfuneko kubukho be-vanadium kwi-Tantalum oxide. Indima yale oxide yayikukusebenza njengesigqubuthelo esikhuselayo kwaye ngenxa yoko ukuhlwa okungaphezulu kwe-titanium ngaphantsi komgangatho we-oxide kwakungenakwenzeka. I-Vanadium yayikhona kwi-alloy ukukhuthaza kunye nokuzinzisa le oxide, ngoko ke i-titanium yayixhathisa ngakumbi kwi-corrosion.
Ngaphezu koko, i-aluminiyam, i-molybdenum, i-niobium, njl. Ezi zinto ziyakwazi ukwenza umaleko we-oxide okhuselayo okhuselayo kumphezulu wayo yonke i-titanium ethintela indawo esebenzayo yokubola kwaye inciphisa izinga lokubola.
Imveliso yomakhi ngendlela ebamba undoqo wombhalo wokuqala ngaphandle kokuza njengesishwankathelo okanye utoliko lombhali: Ingahlelwa ngokulula ngendlela engcono okanye enye indlela Igxininiswe ukuba ukwakheka kwealloyi, nokuba luhlobo lweziqalelo okanye ugxininiso lumisela ukuxhathisa umhlwa kuyo nayiphi na ingxubevange ye-Titanium kwaye ukuze kuphuculwe ngcono ukuchaneka kwabo kumzekelo wokuxhasa ubushushu obuchanekileyo.
Kungcono ukujonga imithombo egunyazisiweyo okanye uqhagamshelane neengcali kwaye ufikelele kwiingcebiso zobuchwephesha ukuze uqonde ngcono le matrix kunye nokuba oku kukuchaphazela njani ukuxhathisa kokubola kwe-titanium alloys kunye nesinyithi. Unokuqinisekisa eminye imithombo yoncwadi, kwaye uphande isicelo sakho esithile ukuze uqiniseke ngakumbi ngokukhethwa kwezinto ze-titanium, iimpawu okanye ukusebenza kunye neempawu.
Indima ye-Titanium Dioxide ekuthinteleni umhlwa
Ndiyakwazi ukuthetha ngokuqinisekileyo malunga neendawo ze-titanium kunye nokusetyenziswa kwazo - azibizi ngenxa ye-titanium dioxide ekhoyo kuzo. Ngoku xa i-Ti inxibelelana no-O, okwenzekayo ngumaleko obhityileyo we-titanium oxide (TiO2) yenziwa phezu komhlaba. Loo oxide inqanda ukubola kwixesha elizayo kwaye ngaloo ndlela izinto zihlala ziluncedo ixesha elide.
Ngoku iiparamitha eziphambili zobugcisa malunga nale nkqubo ingentla zimi ngolu hlobo lulandelayo:
I-Passivation: Kuzo zonke ezi zinto, i-passivation yeyona nto ibaluleke kakhulu kwaye yiyo le nto i-titanium ingagqwali kwaye kutheni kukho ukunamathela okulungileyo apho. Ezi zinokususela kwiqondo lobushushu, kunye nokufuma okuhambelanayo ukuya kwizinto ezinomhlwa ezikhoyo kwaye zichaphazela i-passivation.
Ukutyeba koMaleko weOksidi: Ubukhulu bomaleko we-titanium dioxide bumisela ukuba lo maleko weoksidi uyaxhathisa kangakanani na ekumdleni kunye nobukhulu bayo obahlukeneyo ukusuka kwi-2 ukuya kwi-10 nanometers enceda ekuthinteleni ukuvela komhlwa.
Ubume beCrystal: Ubume bekristale ye-Anatase, i-rutile/i-titania inefuthe kwisakhono sokumelana nokubola kwemathiriyeli ye-titanium. Ukuba sithetha ngokubanzi, isigaba se-rutile siyathandwa njengoko siqulethe uzinzo olufanelekileyo kwaye sikhusela kumhlwa ngcono kakhulu kunokuqhomfa.
Ukuqonda ngokubanzi indlela obu bugcisa busebenza ngayo, ndicebisa ukuba uqhagamshelane nemithombo ethembekileyo kunye nokubonisana neengcali zokubola. Uphando olunganelanga kunye nokungahoywa kwezi parameters kunokuphazamisa ukusebenza okucetywayo kunye nobomi benkonzo yemathiriyeli ye-titanium kwiindawo ezahlukeneyo.
Ngaba imikrwelo inokuchaphazela ukuxhathisa kweTitanium kwiCorrosion?
Ewe, imikrwelo kumaleko wangaphandle we-titanium inokuchaphazela iipropathi zayo zokuxhathisa umhlwa. Xa umphezulu ukrwela, kukho ithuba lokonakalisa ifilimu ye-oxide ekhuselayo ebalulekileyo ekukhuseleni isinyithi kwi-corrosion. Imikrwelo enjalo ibopheleleke ekubeni ibeke esichengeni isidima somaleko weoksidi ngaloo ndlela ivumela izinto ezonakalisayo ukuba zingene. Ngenxa yoko, uxhathiso lwe-corrosion lwempahla luba buthathaka, luveze i-titanium kwindawo eyingqongileyo ekhuthaza ukubola okukhawulezayo. Nakuphi na ukukrweleka kumphezulu we-titanium kufuneka kulungiswe ukuze kuphuculwe ukusebenza kwentsimbi kwiindawo ezahlukeneyo kwaye kwandise ubomi bayo.
Indlela imikrwelo eyichaphazela ngayo iFilimu yeOxide kwiTitanium
Iimpawu zefilimu ye-oxide ekhusela kwi-corrosion kwi-titanium inokuchaphazeleka kakhulu yimikrwelo kumphezulu wayo. Imikrwelo ebusweni be-titanium ibangela ukuphazamiseka kokuqhubekeka komgangatho we-oxide, ngaloo ndlela ibonelela ngeendlela ezinokwenzeka kwii-arhente ze-corrosion eziphazamisa ukuxhatshazwa kwe-corrosion. Oku kuguqula ukwakheka kwezinto kwaye kwenza kube lula ukuba i-titanium idibane nokusingqongileyo.
Ukumelana nomhlwa kuyatshintsha kunye nemikrwelo, ngokuxhomekeke kwizinto ezininzi, umzekelo, umoya ondlongondlongo wekhemikhali ojikeleze i-substrate ekrweliweyo kunye ne-pH yayo, ububanzi kunye nobunzulu bomkrwelo. Imimandla eyandisiweyo ye-titanium ithanda ukwenza nzulu kwaye yandise ukungenwa kukuhlwa. Ngaphezu koko, ubukho bezinto ezinobundlongondlongo okanye iasidi ephezulu ejikeleze iindawo ezikrweliweyo zikhawuleza ukubola.
Ukunciphisa i-corrosion ye-titanium, imiphumo emibi yemikrwelo kwifilimu ye-oxide inokuchaswa ngeendlela ezininzi ezibandakanya - Unyango lwangaphezulu: I-Anodizing, i-passivation kunye nezinye iindlela zonyango ezinokuthi zilungele ukulungisa ifilimu ye-oxide ephazamisayo ngelixa iphucula ukuxhathisa ukubola kwezinto.
Iingubo ezikhuselayo: Ukusetyenziswa kweengubo ezikhuselayo, ezifana neepolymers okanye i-ceramic coatings, kwandisa ngakumbi ukhuseleko ngokuchasene nokuhlwa kwaye kunciphisa impembelelo ye-scrape kumphezulu we-titanium.
Ukuhlolwa rhoqo kunye noLondolozo: Kuyaphawuleka ukuba imfuno eqhubekayo kukubeka iliso kwimigangatho ye-titanium ukujonga kunye nokusombulula imikrwelo kunye / okanye omnye umonakalo. Ukusombulula loo monakalo ngokukhawuleza kunye/okanye unyango lomphezulu luthande ukuthintela ukuthotywa okukhulu kunye nokunceda ukugcina iipropathi ezikhusela ukuhlwa kwezinto.
Kwakhona, iimfuno zobugcisa kunye neengqwalasela zokusebenzisa le ndlela kwitekhnoloji yokusombulula umkrwelo womphezulu we-titanium kwizixhobo ezahlukeneyo zinokwahluka enye kwenye ngenxa yesicelo, okusingqongileyo, kunye neempawu zeshishini. Umbhali ugxininisa ukusetyenziswa kweereferensi ezithembekileyo, iingcali ze-corrosion, kunye nophando olubanzi lwengcebiso esebenzayo kunye nelungele ukusetyenziswa kwengxaki ekhethiweyo yomdla.
Ukulungisa iTitanium Surface ukuze kugcinwe ukuNxhathisa kuMnyama
Ukuba uyincutshe ekumdleni njengam, kufuneka wazi ngokupheleleyo ukuba ukugqiba ukubuyiswa kwemikrwelo kumphezulu we-titanium kubalulekile ukugcina ukuxhathisa kwayo. Ukucofa ingxaki ke ngoko kubandakanya, phakathi kwezinye, la manyathelo alandelayo:
Ukulungiswa komphezulu: Kuyacetyiswa ukulungisa indawo enjalo ngokuyilungisa kuqala, oko kukuthi, ukuyicoca ukukhupha ubumdaka kunye nayo nayiphi na into enokuthi iyingcolise. Oku kunokufezekiswa nge-detergent epholileyo okanye i-solvent, ukuhlamba umphezulu kunye nokuwomisa.
Ukuzaliswa komkrwelo: Kuxhomekeke kubungakanani kunye nobunzulu bokukrwela, iindlela ezininzi ziyafumaneka. Ubuchule bokurhabula ukukhanya obufana nokugalela isanti okanye ukubhobhoza kuvumela ukuzaliswa kwemikrwelo engekho nzulu kwaye ke ngoko kuphucula ukuguda komphezulu. Nangona kunjalo, ukukrala okunzulu kunokutshintshwa ngokuzalisa indawo echaphazelekayo kunye nezinto ezifanelekileyo zokuzalisa ezifana ne-titanium epoxy okanye i-resin.
Ukunyangwa koMphezulu: Kucetyiswa ngamandla ukuba isambatho esikhuselayo sibekwe phezu komhlaba emva kokuba sisetyenzisiwe kwaye emva kokuba umkrwelo uzaliswe kwaye ugudiswe. Iingubo zentsimbi ngakumbi iipolymers kunye neekeramics ziyaziwa ngokubonelela ngezithintelo ezongezelelweyo kwimeko yokubola kwaye ngaloo ndlela kuphuculwe ukuxhathisa ukubola kwezinto. Ukusetyenziswa ngokufanelekileyo kunye nokunyangwa kwengubo ngokomyalelo womenzi kufuneka kwenziwe kule meko.
Ukuhlola kunye noLondolozo: Ukuhlolwa kufuneka kwenziwe rhoqo ukuze kuhlolwe ubukho bemikrwelo emitsha okanye umonakalo kwityali ye-titanium. Kufuneka kuthatyathwe inyathelo elikhawulezileyo ekulungiseni okanye kunyango olungaphezulu ukuze kuthintelwe ukuhlwa okungaphaya kunye nokugcina iimpawu zemathiriyeli ezikwaziyo ukumelana nomhlwa.
Xa kufikwa kwimikrwelo kumphezulu we-titanium, nangona kunjalo, kukho iseti yeempawu ezifunekayo ngokweshishini. Oku kunokuba, umzekelo, indawo yesicelo, ubushushu, iikhemikhali kunye nokuvezwa koxinzelelo, njl njl. Kunengqiqo ukukholelwa ukuba imithombo ethembekileyo, uphando olunzulu, kunye neengxoxo kunye neenjineli ze-corrosion ziya kunika isikhokelo esichanekileyo sokusebenzisa iindlela ezicetyiswayo kunye neerameters zobugcisa kwimeko ethile.
Ucaphulo
Imibuzo ebuzwa rhoqo (FAQ)
Umbuzo: Ngaba i-titanium iyarusa?
IMPENDULO: I-Titanium ayirusi kuba iyakwazi ukumelana nomhlwa nokuhlwa. Oku kungenxa yokhuseleko lwe<em>titanium oxide eyenzeka xa i<em>titanium ibekwe kwindawo engqongileyo, ngokungafaniyo ne<em>iron oxide eyenza kwisinyithi njengentsimbi, nto leyo ezenza zithande ukugqwala nokudleka.
Umbuzo: Yintoni eyenza i-titanium imelane nomhlwa?
A: I-Titanium iyamelana nomhlwa kunye nokubola ngenxa yokwakheka komgangatho obhityileyo, ozinzileyo we-oxide kumphezulu wayo. Lo maleko we-titanium oxide ukhusela i-titanium esulungekileyo engaphantsi ukuze ingadibani nokusingqongileyo.
Umbuzo: Ukumelana njani ne-titanium kwi-corrosion xa kuthelekiswa nezinye iintsimbi?
A: Xa kuthelekiswa nezinye iintsimbi ezininzi, i-titanium iyakwazi ukumelana nokugqwala. Nangona iintsimbi ezifana nentsimbi kunye nentsimbi zichaphazeleka kukugqwala nokugqwala, i-titanium ayichaphazeleki ngenxa yomaleko wayo we-oxide oziphilisayo.
Umbuzo: Ngaba i-titanium inokugqwala emanzini olwandle?
IMPENDULO: I-Titanium imelana kakhulu nomhlwa emanzini olwandle, nto leyo eyenza ukuba ibe yeyona nto ilungele ukusetyenziswa elwandle. Iipropati zayo ezikwaziyo ukumelana nomhlwa ziqinisekisa ukuhlala ixesha elide kunye nokuphila ixesha elide nakwimimandla enzima yamanzi anetyuwa.
Umbuzo: Ngaba iimveliso ze-titanium zifuna ukulungiswa ukunqanda umhlwa?
IMPENDULO: Iimveliso ze-Titanium zifuna ukulungiswa okuncinci ukunqanda umhlwa ngenxa yokuxhathisa kwazo ngokwendalo. Umaleko okhuselayo owenziwe kwi-titanium wenza ukuba ukugcinwa rhoqo kungabi yimfuneko.
Umbuzo: Kutheni i-titanium ithathelwa ingqalelo ukuze isetyenziswe apho uthintelo lomhlwa lubalulekile?
A: I-Titanium ithathelwa ingqalelo kwizicelo ezinjalo kuba iyamelana nomhlwa kunye nokubola, iqinisekisa ukuthembeka kunye nokusebenza kwexesha elide kwiindawo ezibango.
Umbuzo: Ziziphi iingenelo zokusebenzisa i-titanium kulwakhiwo kunye nokuveliswa?
IMPENDULO: Iingenelo zokusebenzisa i-titanium ekwakheni nasekuveliseni iquka ubunzima bayo obulula, ukomelela, kunye nokuxhathisa okugqwesileyo kwirusi nomhlwa, nto leyo enegalelo kubomi obude nokhuseleko lweemveliso zetitanium.
Umbuzo: Ingaba umaleko we-titanium we-oxide wenziwa njani?
A: Xa i-titanium isesichengeni seoksijini, ngokwemvelo yenza umaleko omncinane wetitanium oxide. Lo maleko uzinzile kwaye ukhusela i-titanium ecocekileyo ngaphantsi kwi-oxidation ngakumbi kunye nokuhlwa.
Umbuzo: Ngaba i-titanium iyakwazi ukugqwala xa ikrwele okanye yonakele?
IMPENDULO: Nokuba ikrwelwe okanye yonakele, i-titanium ayinakukwazi ukurusa. I-oxide layer eyenza i-titanium iyaziphilisa, ithetha ukuba iya kuguqulwa ngokukhawuleza kwaye iqhubeke nokukhusela isinyithi ekudlekeni.
