Titanium yog IVB lub caij nyob rau hauv lub periodic table. Nws zoo li hlau thiab muaj qhov kub ntawm 1 672 ℃. Nws yog cov hlau refractory. Titanium muaj ntau nyob rau hauv lub ntiaj teb' s crust, ntau dua li cov hlau xws li Cu, Zn, Sn, thiab Pb. kuv lub teb chaws' cov khoom siv titanium yog nplua nuj heev. Tsuas yog ntawm cov super-loj vanadium-titanium magnetites pom nyob rau hauv Panzhihua, Sichuan, cov titanium hlau reserves yog kwv yees li 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 ua tau yooj yim. Yog tias impurities, tshwj xeeb tshaj yog O, N, thiab C, nce lub zog thiab hardness ntawm titanium, tab sis yuav txo nws cov plasticity thiab nce brittleness.
Titanium yog cov hlau uas yooj yim passivated, thiab nyob rau hauv ib qho chaw uas muaj oxygen, nws cov zaj duab xis passivation tuaj yeem kho nws tus kheej tom qab raug puas tsuaj. Yog li ntawd, qhuav corrosive media yog ruaj khov. Titanium thiab titanium alloys muaj kev tiv thaiv corrosion zoo heev thiab tuaj yeem tsuas yog corroded los ntawm cov concentration ntawm hydrofluoric acid. Tshwj xeeb tshaj yog ruaj khov, tom qab tshem tawm cov titanium lossis titanium alloy, nws tseem ci ntsa iab zoo li ua ntej, zoo dua li cov hlau tsis muaj steel.
Lwm tus yam ntxwv tseem ceeb ntawm titanium yog nws qhov ntom ntom. Nws lub zog yog 3.5 npaug ntawm stainless hlau thiab 1.3 npaug ntawm aluminium alloy, uas yog qhov siab tshaj plaws ntawm tag nrho cov khoom siv hlau.
Cov kua titanium tuaj yeem yaj yuav luag tag nrho cov hlau thiab tsim ntau yam alloys xws li cov tshuaj daws teeb meem lossis cov hlau sib txuas. Qhov sib ntxiv ntawm cov ntsiab lus alloying xws li Al, V, Zr, Sn, Si, Mo thiab Mn tuaj yeem txhim kho cov khoom 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 txuas ntxiv los ntawm 50% mus rau 150% Ua thiab tsim, nws qhov siab tshaj plaws elongation tuaj yeem ncav cuag 2 000%. Lub elongation ntawm cov hlau alloy yas ua haujlwm tsis ntau tshaj 30%.
Vim yog cov khoom zoo tshaj plaws uas tau hais los saum no, titanium nyiam lub koob npe nrov ntawm" cov hlau ntawm lub neej 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, khoom siv hluav taws xob thiab khoom siv sib txuas lus, nrog rau qee qhov kev lag luam teeb. Txawm li cas los xij, tus nqi ntawm titanium kuj tseem kim, uas txwv nws txoj kev siv dav.