Corrosion ua rau muaj kev sib tw tseem ceeb rau titanium alloy nplooj ntawv, tshwj xeeb tshaj yog nyob rau hauv kev txo cov inorganic acids thiab cov organic acid ib puag ncig uas tswj passivation proves nyuaj, accelerating corrosion. Yuav kom txo tau qhov teeb meem no zoo, kev koom ua ke ntawm corrosion inhibitors tau tshwm sim los ua ib lub tswv yim muaj zog. Cov inhibitors no, xws li cov hlau tsis zoo rau cov hlau hnyav ions, oxidative inorganic compounds, oxidative organic compounds, thiab chelating organic inhibitors, ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv corrosion. Txawm li cas los xij, vim lawv cov nqi siab, cov hlau tsis muaj zog yog siv los ua cov tshuaj tiv thaiv corrosion hauv kev txo cov inorganic acids. Hnyav hlau ions zoo li tooj liab thiab hlau, thaum ncav cuag qhov tseem ceeb, pom pom kev cuam tshuam corrosion inhibition.
Inorganic oxidative tebchaw xws li nitric acid, chlorine gas, poov tshuaj chlorate, potassium dichromate, poov tshuaj permanganate, thiab hydrogen peroxide kuj qhia txog corrosion inhibition zog. Oxidative organic tebchaw, suav nrog nitro lossis nitroso compounds thiab nitrogen compounds, zoo ib yam ua haujlwm rau inhibition. Nyob rau hauv sib piv rau oxidative organic tebchaw, chelating organic inhibitors exert corrosion inhibition ntawm tej concentration, albeit nrog ntau yam kev ua tau zoo.
Kev kho deg ua si lub luag haujlwm tseem ceeb hauv kev txhim kho corrosion kuj ntawm titanium alloy nplooj ntawv. Cov txheej txheem muaj xws li cathodic oxidation, thermal oxidation, nitriding, thiab txheej thev naus laus zis. Kev tshawb fawb qhia tias cov txheej txheem txheej txheem muab cov lus tshaj tawm txhim kho hauv kev tiv thaiv corrosion rau titanium alloy nplooj ntawv, tshaj qhov kev tiv thaiv corrosion ntawm Ti-0.15Pd. Anodizing titanium alloy nplooj ntawv feem ntau koom nrog rau hauv 5% -10% (NH4) 2SO4 kev daws teeb meem thiab siv 25V DC voltage, tshem tawm cov hlau tsis huv, ua kom ntev ntev, thiab tiv thaiv hydrogen nqus los ntawm cov hlau tsis huv. Yog li ntawd, cov txheej txheem thoob ntiaj teb tswj hwm anodization rau txhua yam khoom siv titanium. Txhawm rau txhim kho cov teebmeem anodizing, sodium platinic acid tej zaum yuav hloov ammonium sulfate hauv cov tshuaj anodizing rau superior corrosion kuj.
Thermal oxidation kev kho mob ua nyob rau hauv cov huab cua pab kom tsim cov thicker, siab dua crystallinity rutile-hom thermal oxide zaj duab xis ntawm titanium alloy nplooj ntawv, exhibiting superior corrosion kuj piv rau anodized films. Cov txheej txheem oxidation cua sov feem ntau tshwm sim ntawm qhov kub ntawm 600-700 degree rau 10-30 feeb, nrog rau qhov kub thiab txias ntau dhau los yog lub sijhawm ntev uas yuav cuam tshuam rau kev kho mob.
Tshwj xeeb tshaj yog, cov coatings uas muaj palladium muaj txiaj ntsig zoo tshaj plaws hauv titanium alloy daim ntawv thov. Palladium-muaj txheej txheej feem ntau suav nrog palladium oxide lossis palladium alloy deposits. Ib txoj hauv kev los npaj PdO-TiO2 coatings suav nrog kev siv cov kev daws teeb meem ntawm PdCl4 thiab TiCl3 mus rau titanium alloy daim ntawv nto, ua raws li cua sov ntawm 500-600 degree rau 10-50 feeb. Cov txheej txheem no tuaj yeem rov ua dua kom ua tiav cov txheej tuab tshaj 1g / m². Palladium alloy coatings yog thawj zaug tsim los ntawm electroplating los yog lub tshuab nqus tsev deposition, ua raws li kev kho deg alloying zoo li laser nto melting los yog ion implantation los txhim kho adhesion thiab corrosion kuj, tshaj qhov ua tau zoo ntawm palladium oxide txheej.
Hauv kev xaus, kev siv tswv yim ntawm kev siv cov tshuaj tiv thaiv corrosion thiab cov txheej txheem kev kho saum npoo av, xws li anodizing, thermal oxidation, thiab palladium-muaj cov txheej txheem, yog qhov tseem ceeb hauv kev tiv thaiv titanium alloy nplooj ntawv tiv thaiv corrosion, kom lub sij hawm ntev thiab kev ua tau zoo nyob rau hauv ntau qhov chaw.
