Corrosion tsis kam ntawm titanium thiab kev ua haujlwm ntawm titanium hauv kev tshaj tawm

Titanium passivity nyob ntawm lub xub ntiag ntawm oxide zaj duab xis, nws yog nyob rau hauv lub oxidizing nruab nrab nyob rau hauv lub corrosion kuj tshaj nyob rau hauv lub txo qhov nruab nrab yog zoo dua, nyob rau hauv lub txo nruab nrab yuav tshwm sim sai corrosion. Titanium nyob rau hauv ib tug xov tooj ntawm corrosive media, corrosion kuj yog superior, xws li seawater, ntub chlorine, chlorite thiab hypochlorite tov, nitric acid, chromic acid, hlau chlorides, sulfides thiab organic acids. Txawm li cas los xij, nyob rau hauv cov tshuaj tiv thaiv nrog titanium los tsim hydrogen nruab nrab (xws li hydrochloric acid thiab sulfuric acid), titanium feem ntau corrode sai dua. Txawm li cas los xij, yog tias ib qho me me ntawm oxidizing tus neeg sawv cev ntxiv rau cov kua qaub, titanium yuav tsim ib zaj duab xis passivation, ncua nws cov corrosion. Yog li ntawd, titanium yog corrosion-resistant nyob rau hauv muaj zog sulfuric acid-nitric acid los yog hydrochloric acid-nitric acid sib tov, thiab txawm nyob rau hauv hydrochloric acid muaj dawb chlorine. Kev tiv thaiv oxide zaj duab xis ntawm titanium feem ntau yog tsim thaum cov hlau raug dej, txawm tias me me los yog muaj dej vapor. Yog tias titanium raug rau ib puag ncig oxidizing muaj zog nyob rau hauv qhov tsis muaj dej tiav, oxidation ceev thiab hnyav combustion tuaj yeem tshwm sim. Xws li tus cwj pwm tau tshwm sim nyob rau hauv cov tshuaj tiv thaiv ntawm titanium nrog fuming nitric acid uas muaj ntau tshaj nitrogen oxide, thiab titanium nrog qhuav chlorine gas.