Titanium yog ib qho hlau uas muaj zog heev uas tuaj yeem cuam tshuam nrog yuav luag txhua lub ntsiab lus. Thaum qhov kub thiab txias, nws tuaj yeem cuam tshuam nrog cov roj sib txuas CO, CO2, dej vapor, NH4 thiab ntau cov organic sib txuas. Thaum cov txheej txheem cua sov, cov tshuaj tiv thaiv ntawm cov hlau hlau thiab cov titanium nto ua rau muaj kev sib kis ntawm qhov chaw thiab kev hloov hauv cov tshuaj lom neeg. Qee cov pa roj yuav tsis tsuas yog tsim cov sib txuas ntawm titanium nto, tab sis kuj nkag mus rau hauv cov hlau lattice los tsim cov kev daws teeb meem interstitial. Nyob rau hauv ib qho kev lag luam atmospheric siab, cov pa nqus thiab nitrogen absorption curves ntawm ntshiab titanium yuav hloov nrog ntau yam atmospheric ib puag ncig.
Titanium thiab nws cov alloys hnov mob nrog oxygen thaum rhuab hauv huab cua lossis huab cua uas muaj oxygen. Thaum tshav kub qis dua 428 degree, ib qho kev tiv thaiv oxide zaj duab xis yog tsim. Raws li qhov kub thiab txias, lub thickness ntawm oxide zaj duab xis nce. Thaum qhov kub nce siab tshaj 538 degree, oxide zaj duab xis pib poob nws txoj kev tiv thaiv. Oxygen diffuses los ntawm cov yeeb yaj kiab mus rau sab hauv ntawm cov hlau, ua kom pom tseeb outgassing. txheej. Yog hais tias nws nce siab tshaj 815 degree, ib txheej ntawm xoob oxide nplai yuav tsim rau saum npoo ntawm titanium alloy.
Cov nyhuv ntawm hydrogen thiab titanium alloy muaj feem xyuam rau cov cua kub thiab lub sijhawm. Thaum qhov kub thiab txias qis dua 427 degree, yog tias muaj oxide zaj duab xis rau saum npoo ntawm titanium alloy, nws tuaj yeem tiv thaiv qhov nqus ntawm hydrogen. Thaum qhov kub siab tshaj 427 degree, hydrogen pib nkag mus rau oxide txheej thiab nkag mus rau sab hauv ntawm cov qauv hlau. Qhov kev cuam tshuam ntawm hydrogen inhalation ntawm cov khoom ntawm titanium alloys kuj ncaj qha cuam tshuam rau lub xeev cov qauv ntawm cov hlau. Txij li thaum lub solubility ntawm hydrogen atoms nyob rau hauv lub theem yog ntau ntau dua li nyob rau hauv lub theem, tus nqi thiab cov duab ntawm cov theem ntawm cov alloy txiav txim hydrogen paug. ib qho ntawm cov ntsiab lus tseem ceeb.
Tsis tas li ntawd, roj stains thiab stains ntawm lub workpiece yog ua rau carbonization. Cov hws hws tuaj yeem yooj yim ua rau cov chloride adhesion thaum lub sij hawm cua sov, yog li ua rau kub ntsev kev nyuaj siab corrosion hauv kev siv tom ntej. Kev nce hauv cov ntsiab lus ntawm cov ntsiab lus sib txawv tsis tsuas yog cuam tshuam ncaj qha rau cov khoom siv hluav taws xob ntawm titanium thiab titanium alloys, tab sis kuj cuam tshuam rau qhov + / theem hloov pauv thiab qee theem kev hloov pauv ntawm titanium alloys. Yog li ntawd, kev tiv thaiv kev sib kis thaum lub sij hawm cua sov yog ib qho teeb meem tseem ceeb heev rau titanium thiab titanium alloys.
Rau -type titanium alloys nrog nyias phab ntsa thickness, siab saum npoo ci yuav tsum thiab muaj zog susceptibility rau hydrogen embrittlement, lub tshuab nqus tsev tsim yog qhov zoo tshaj plaws. Kev tsim lub tshuab nqus tsev tsis tas yuav tsum tau siv lub tshuab nqus tsev vacuum kim.
Yog li ntawd, txhawm rau txo ntau yam kev cuam tshuam nyob rau hauv ib puag ncig atmospheric, lub tshuab nqus tsev quenching furnaces thiab lub tshuab nqus tsev annealing furnaces feem ntau yog siv rau cua sov. Cov roj inert hauv lub tshuab nqus tsev tuaj yeem tiv thaiv titanium thiab titanium alloy cov ntaub ntawv los ntawm kev sib kis thaum lub sijhawm cua sov.
