Txawm hais tias titanium flanges muaj corrosion kuj zoo, lawv tseem yuav raug kev txom nyem los ntawm corrosion thiab kev nyuaj siab corrosion nyob rau hauv tej yam kev tshaj tawm ib puag ncig. Ntawm lawv, thawj tus uas tau nyiam ntau dua yog kub ntsev kev nyuaj siab corrosion.
Cov kev ntsuam xyuas tau pom tias, tshwj tsis yog cov ntshiab titanium, yuav luag tag nrho cov titanium flanges muaj tib qib ntawm cov ntsev kub ntsev corrosion nyiam nyob rau hauv qhov chaw ua hauj lwm nrog kub kub, kev nyuaj siab thiab muaj halides (xws li NaF, NaCl, NaBr, NaI). Rau feem ntau cov alloys, qhov ntsuas kub ntau rau kub ntsev kev nyuaj siab corrosion yuav tsum yog 288-427 degree . Corrosion nyiam muaj feem xyuam rau metallurgical yam xws li alloy muaj pes tsawg leeg thiab ua keeb kwm. High-aluminium thiab high-oxygen alloys thiab B-processed los yog B-kho coarse-grained Widmanstatten lug yog rhiab heev rau kev nyuaj siab corrosion.
Qhov ua rau hlau embrittlement tshwm sim los ntawm kub ntsev kev nyuaj siab corrosion yog ntseeg hais tias muaj feem xyuam rau hydrogen embrittlement. Nyob rau hauv qhov kub thiab txias, halide hydrolyzes tsim HCl roj. HCl txuas ntxiv cuam tshuam nrog titanium los tsim hydrogen, uas yog
NaCl+H20-HCl+NaOH
2HCl+Ti-TiCl2+2H
Ntxiv rau qhov kub ntsev kev ntxhov siab corrosion, titanium flanges muaj qee qhov kev ntxhov siab corrosion nyiam nyob rau hauv liab fuming nitric acid, N204, methanol daws uas muaj hydrochloric acid, thiab sulfuric acid. Thaum ib qho piv txwv nrog lub ntsej muag ntse yog siv rau kev ntsuam xyuas kev ntxhov siab, nws muaj 3.5% NaCl aqueous tov yuav txo tau lub neej ntawm corrosion.
Qhov kev ntxhov siab corrosion nyiam ntawm titanium flange muaj feem xyuam rau cov alloy muaj pes tsawg leeg thiab kev kho cua sov. Ua kom cov ntsiab lus ntawm aluminium, tin thiab oxygen yuav ua rau muaj kev ntxhov siab corrosion. Ntawm qhov tsis sib xws, ntxiv B stabilizing cov ntsiab lus, xws li txhuas, vanadium, zinc, nyiaj, thiab lwm yam rau cov hlau tuaj yeem txo qhov kev ntxhov siab corrosion. Titanium flange kuj muaj qhov nyiam ntawm cov kua hlau embrittlement. Piv txwv li, kev sib cuag ntawm molten cadmium thiab titanium yuav ua rau cadmium embrittlement, thiab mercury yuav muaj cov nyhuv zoo sib xws. Tshaj 340 degree, nyiaj tuaj yeem ua rau cov alloys xws li TA7 corrode thiab tawg.
