Txawm hais tias titanium muaj kev tiv thaiv corrosion zoo heev hauv cov xov xwm corrosive, thaum xaiv titanium ua cov khoom siv tiv thaiv corrosion, koj yuav tsum tau ua tib zoo saib xyuas cov ntsiab lus hauv qab no:
1) Muaj cov ntshiab titanium muaj kev tiv thaiv corrosion zoo dua nyob rau hauv qhov kub thiab txias, siab-solubility nitric acid daws; Txawm li cas los xij, hauv cov kua dej nitric acid, nws feem ntau corroded vim tsis muaj corrosion-inhibiting tetravalent titanium ions. Yog li ntawd, thaum siv titanium nyob rau hauv qhov chaw no, Ti-5Ta alloy yuav tsum tau siv.
2) Titanium tsis raug kev txom nyem los ntawm pitting corrosion nyob rau hauv seawater thiab vapor melting tsis; tab sis pitting corrosion tshwm sim nyob rau hauv boiling melting tsis muaj magnesium vapor, txhuas vapor, tooj liab chloride, zinc chloride thiab calcium vapor. Muaj cov ntshiab titanium muaj peev xwm ntawm crevice corrosion nyob rau hauv seawater nrog kub siab tshaj 90 degree. Yog li ntawd, nyob rau hauv ib puag ncig no, nws raug nquahu kom siv Ti-0.2Pb alloy.
3) Kev lag luam ntshiab titanium tsis corrode hauv hydrocarbons uas muaj roj thiab fluorine. Txawm li cas los xij, thaum muaj dej, hydrolysis tsim hydrochloric acid thiab hydrofluoric acid, uas corrode titanium. Thaum cov hydrocarbons decompose ntawm qhov kub siab los tsim hydrogen, titanium yuav nqus tau cov hydrogen, ua rau hydrogen embrittlement.
4) Titanium tsis corroded los ntawm ntub ammonia (muaj ntau tshaj 1% ya raws) thiab gases xws li hydrocarbon dioxide, carbon dioxide, hydrogen sulfide, thiab lwm yam.; tab sis nws yog corroded nyob rau hauv qhuav ammonia; thiab ua rau muaj hluav taws kub thiab combustion ntawm -253 ~ 93 degree . Nyob rau hauv qhov kub thiab txias, titanium muaj kev tiv thaiv zoo heev rau hydrogen thiab nitrogen peroxide; Txawm li cas los xij, hauv cov pa oxygen, kua oxygen thiab qee cov dej-soluble nthwv dej nrog cov pa oxygen siab ib nrab, titanium kuj tseem tuaj yeem ua rau muaj kev sib tsoo ntawm titanium. Kev saib xyuas yuav tsum tau ua thaum siv titanium hauv qhov chaw no,
5) Muaj cov ntshiab titanium feem ntau tsis ua rau muaj kev ntxhov siab corrosion tawg; Txawm li cas los xij, nws yooj yim rau kev ntxhov siab corrosion cracking los yog spontaneous combustion nyob rau hauv cov organic solvents xws li methanol thiab ethanol uas muaj cov kab ntawm hydrochloric acid thiab fuming nitric acid.
6) Yog tias titanium tuaj rau hauv kev sib cuag nrog cov hlau uas muaj peev xwm qis dua, cov hlau uas muaj peev xwm qis dua yuav corrode. Qhov luaj li cas ntawm corrosion nyob ntawm qhov kev faib ua feem ntawm cov hlau nto hauv kev sib cuag nrog titanium.
7) Txawm hais tias titanium kuj muaj qhov zoo corrosion tiv thaiv alkalis nrog pH tus nqi ntau dua 9; Txawm li cas los xij, vim tias hydrogen embrittlement yog qhov tshwm sim ntawm qhov kub siab dua, titanium tsuas yog siv hauv cov tshuaj alkaline ntawm qhov kub thiab txias. Thaum cov tshuaj alkali muaj cov tshuaj dawb chlorine, cov tshuaj tiv thaiv corrosion ntawm titanium rau cov tshuaj alkali zoo tuaj. Ntawm qhov tsis sib xws, thaum cov tshuaj alkali muaj cov pa thiab ammonia, qhov corrosion ntawm titanium los ntawm cov tshuaj alkali yuav hnyav dua.
