Titanium yog IVB lub caij nyob rau hauv lub periodic table. Nws zoo li cov hlau thiab muaj qhov melting point ntawm 1672 degree. Nws yog cov hlau refractory. Titanium muaj ntau nyob rau hauv lub crust, ntau dua li cov hlau xws li Cu, Zn, Sn thiab Pb. Tuam Tshoj yog nplua nuj nyob rau hauv titanium kev pab. Tsuas yog qhov loj ntxiv ntawm vanadium titanium magnetite pom nyob rau hauv Panzhihua, Sichuan, tau koom nrog titanium hlau reserves txog 420 lab tons, uas yog ze rau tag nrho cov pov thawj titanium reserves txawv teb chaws.
Ntshiab titanium muaj zog txhua yam khoom, zoo plasticity thiab yooj yim rau txheej txheem. Yog hais tias muaj impurities, tshwj xeeb tshaj yog O, N thiab C, lub zog thiab hardness ntawm titanium yuav zoo dua, tab sis nws plasticity yuav txo thiab brittleness yuav nce.
Titanium yog hlau yooj yim rau passivate, thiab nws cov zaj duab xis passive tuaj yeem kho nws tus kheej tom qab raug puas tsuaj hauv qhov chaw uas muaj oxygen. Yog li ntawd, qhov nruab nrab corrosion qhuav yog ruaj khov. Titanium thiab titanium alloys muaj kev tiv thaiv corrosion zoo heev thiab tuaj yeem tsuas yog eroded los ntawm hydrofluoric acid concentration. Tshwj xeeb yog ruaj khov. Tom qab titanium lossis titanium alloy raug tshem tawm, nws tseem ci ntsa iab zoo li ua ntej, zoo dua li cov hlau tsis muaj steel.
Cov kua titanium tuaj yeem yaj yuav luag tag nrho cov hlau los tsim ntau yam alloys xws li cov khoom daws teeb meem lossis cov hlau sib txuas. Qhov sib ntxiv ntawm cov ntsiab lus alloy xws li Al, V, Zr, Sn, Si, Mo thiab Mn tuaj yeem txhim kho kev ua haujlwm ntawm titanium kom tau raws li qhov xav tau ntawm ntau lub tuam tsev. Piv txwv li, Ti Al Sn alloy muaj thermal stability thiab tuaj yeem ua haujlwm tau ntev ntawm qhov kub thiab txias; Superplastic alloy sawv cev los ntawm Ti-Al-V alloy tuaj yeem tsim los ntawm 50% ~ 150% elongation, thiab nws qhov siab tshaj plaws elongation tuaj yeem ncav cuag 2000 feem pua. Qhov siab tshaj plaws elongation ntawm kev ua cov yas ntawm cov alloys dav dav yuav tsum tsis pub tshaj 30 feem pua. Ib qho ntxiv, titanium alloys feem ntau muaj qhov ntom ntom ntom ntom ntom, muaj lub zog siab thiab cov txiaj ntsig dav dav.
Vim yog cov khoom zoo saum toj no, titanium nyiam lub koob npe nrov ntawm "hlau yav tom ntej". Titanium alloy tau dav siv nyob rau hauv ntau yam sectors ntawm lub teb chaws kev khwv nyiaj txiag. Nws yog ib qho khoom siv tseem ceeb rau cov foob pob hluav taws, missiles thiab chaw shuttles. Titanium alloys tau dav siv hauv nkoj, tshuaj lom neeg kev lag luam, khoom siv hluav taws xob thiab cov khoom siv sib txuas lus, nrog rau qee qhov kev lag luam teeb pom kev zoo. Txawm li cas los xij, tus nqi siab ntawm titanium txwv nws txoj kev siv dav.
