Titanium corrosion kuj yam ntxwv

Titanium yog cov hlau uas muaj zog passivation nyiam, nyob rau hauv cov huab cua thiab oxidation los yog nruab nrab dej tov yuav sai sai tsim ib tug ruaj khov oxidation tiv thaiv zaj duab xis, txawm tias cov zaj duab xis puas vim tej yam, tab sis kuj yuav sai sai thiab cia li rov qab. Yog li ntawd, titanium muaj Zoo heev corrosion kuj nyob rau hauv oxidizing thiab nruab nrab media.Vim lub zoo passivation zog ntawm titanium, lub corrosion yuav tsis ceev thiab tej zaum yuav tshwm sim nyob rau hauv kev sib cuag nrog cov hlau sib txawv nyob rau hauv ntau rooj plaub.Yog hais tias nyob rau hauv tsawg concentrations uas tsis yog-oxidized acid, yog Pb, Sn, Cu los yog Monel alloy yog hu rau titanium, cov ntaub ntawv no corrode sai dua, thiab titanium tsis cuam tshuam.In hydrochloric acid, thaum titanium hu nrog tsawg-carbon steel, cov hydrogen tshiab tsim nyob rau saum npoo ntawm titanium rhuav tshem cov oxide zaj duab xis ntawm titanium, uas. Tsis tsuas yog ua rau hydrogen fragility ntawm titanium, tab sis kuj accelerates lub corrosion ntawm titanium, uas tej zaum yuav yog vim muaj kev ua haujlwm siab ntawm titanium ntawm hydrogen.Cov ntsiab lus hlau hauv titanium muaj kev cuam tshuam rau corrosion kuj nyob rau hauv ib co xov xwm. Ntxiv rau qhov laj thawj ntawm cov khoom siv raw, qhov laj thawj ntawm cov hlau nce feem ntau yog cov hlau stained nkag mus rau hauv lub vuam duct, kom cov ntsiab lus hlau hauv zos hauv cov kav hlau txuas ntxiv, thiab tom qab ntawd cov corrosion muaj cov khoom tsis sib xws. hlau qhov chaw los txhawb cov khoom siv titanium, cov hlau paug ntawm cov hlau-titanium tiv thaiv nto yuav luag inevitably accelerates corrosion nyob rau hauv cov hlau paug cheeb tsam, tshwj xeeb tshaj yog nyob rau hauv lub xub ntiag ntawm hydrogen.Thaum cov titanium oxide zaj duab xis nyob rau hauv stained nto yog mechanically puas. hydrogen nkag mus rau hauv cov hlau. Raws li qhov kub thiab txias, siab thiab lwm yam kev mob, cov hydrogen tshwm sim qhov sib thooj diffusion, uas ua rau cov titanium tsim cov qib sib txawv ntawm hydrogen brittle.Yog li ntawd, titanium siv nyob rau hauv nruab nrab kub thiab nruab nrab siab thiab hydrogen-muaj tshuab kom tsis txhob nto hlau paug. Feem ntau, titanium tsis tshwm sim qhov corrosion.Titanium kuj muaj corrosion-resistant fatigue stability.Titanium muaj qhov sib txawv corrosion kuj zoo, tshwj xeeb tshaj yog Ti-0.3Mo-0.8Ni thiab Ti-0 .2Pd alloys, yog li Ti-0.3Mo-0.8Ni thiab Ti-0.2Pd alloys yog dav siv nyob rau hauv sealing nto cov ntaub ntawv ntawm cov khoom ntim, los daws qhov sib txawv corrosion ntawm cov khoom siv. sealing nto.