Titanium Corrosion Resistance

Titanium yog ib yam hlau uas muaj zog heev uas muaj qhov sib npaug qis heev thiab muaj lub siab nyiam rau thermodynamic corrosion hauv xov xwm. Txawm li cas los xij, titanium yeej ruaj khov nyob rau hauv ntau yam xov xwm, xws li titanium yog corrosion resistant nyob rau hauv oxidizing, nruab nrab thiab tsis muaj zog tshaj tawm. Qhov no yog vim titanium thiab oxygen muaj ib tug zoo affinity, nyob rau hauv cov huab cua los yog oxygen-muaj xov xwm, titanium nto los tsim ib txheej ntawm ntom, muaj zog adhesion, inert oxidized zaj duab xis, tiv thaiv titanium substrate los ntawm corrosion. Txawm tias vim kev siv tshuab thiab tsim kua muag yuav sai sai nws tus kheej kho lossis rov tsim dua tshiab. Qhov no qhia tau hais tias titanium yog cov hlau uas muaj zog passivation nyiam. Qhov nruab nrab kub hauv qab 315 degree titanium oxide zaj duab xis yeej ib txwm tuav tus yam ntxwv no.

Txhawm rau txhim kho corrosion tsis kam ntawm titanium, cov txheej txheem kho saum npoo xws li oxidation, electroplating, plasma spraying, ion nitriding, ion implantation thiab laser kho tau raug tshawb xyuas, uas ua lub luag haujlwm tiv thaiv zoo ntawm oxide zaj duab xis ntawm titanium, thiab xav tau. Cov nyhuv corrosion kuj tau txais. Hauv kev teb rau qhov xav tau ntawm cov khoom siv hlau hauv kev tsim cov sulfuric acid, hydrochloric acid, methylamine tov, high-temperature ntub chlorine gas thiab high-temperature chlorides, series ntawm corrosion-resistant titanium alloys, xws li titanium-molybdenum, titanium- palladium, titanium-molybdenum-nickel, thiab lwm yam, tau tsim. Titanium castings siv titanium-32 molybdenum alloy, feem ntau tshwm sim crevice corrosion los yog pitting corrosion ntawm ib puag ncig siv titanium-0.3 molybdenum-0.8 nickel alloy lossis titanium khoom, siv hauv zos ntawm titanium{ {12}}.2 palladium alloy, tau txais txiaj ntsig zoo heev.