Muaj cov ntshiab titanium muab faib ua plaub qib raws li tus naj npawb ntawm impurities muaj, xws li TA1, TA2, TA3, thiab TA4. Lawv yeej sib raug rau Qib 1-4 titanium hauv Tebchaws Meskas, uas yog, Gr.1, Gr.2, Gr.3, thiab Gr.4.
Nrog rau qhov txo qis hauv purity, lub zog thiab hardness ntawm kev lag luam ntshiab titanium nce, thaum lub plasticity, cuam tshuam toughness, thiab qaug zog kuj txo. Gr3 thiab Gr4 tuaj yeem xaiv tau thaum cov kev xav tau rau lub zog, hardness thiab hnav tsis kam yog siab, thiab Gr1 thiab Gr2 tuaj yeem siv tau thaum yuav tsum tau ua kom zoo formability siab.
Gr4 titanium alloy yog hom I titanium alloy, uas yog yam ntxwv los ntawm Hom A ib-theem lub xeev, uas tsis tuaj yeem ua kom muaj zog los ntawm kev kho cua sov (annealing yog tib hom kev kho cua sov), feem ntau yog nyob ntawm kev kho kom muaj zog.
Gr4 room temperature strength is generally lower than β'>Hom thiab ntxiv rau Hom I titanium alloy (tab sis siab dua kev lag luam ntshiab titanium), tab sis lub zog thiab creep zog ntawm qhov kub siab (500-600 degree) yog qhov siab tshaj ntawm peb hom titanium alloys; Nws muaj cov qauv ruaj khov, zoo oxidation tsis kam, thiab weldability, zoo corrosion kuj thiab machinability, tab sis tsis tshua muaj plasticity (tseem zoo thermoplasticity) thiab tsis zoo chav kub stamping kev ua tau zoo. Ntawm lawv, qhov nrov tshaj plaws ntawm cov no yog Gr6. Nws muaj lub zog nruab nrab thiab txaus plasticity hauv lub xeev annealed. Nws muaj qhov zoo weldability thiab tuaj yeem siv qis dua 500 degree; Thaum cov ntsiab lus ntawm interstitial impurities (oxygen, hydrogen, nitrogen, thiab lwm yam) tsawg heev, Nws yog ib qho zoo tshaj plaws ultra-tsawg kub alloys thiab muaj siab toughness thiab tag nrho cov neeg kho tshuab zog ntawm tsis tshua muaj kub.
Vim tias Gr4 muaj lub zog tensile me ntsis dua li kev lag luam ntshiab titanium, nws tuaj yeem ua haujlwm raws li cov khoom siv nrog lub zog nruab nrab. Nws yog tsuas yog siv raws li vuam hlau domestically, thaum nws yog dav siv nyob rau hauv high-end electroplating hanger kev lag luam txawv teb chaws.
