Casting a, a + B thiab titanium alloy kev faib tawm thiab nws cov khoom, qib, tshuaj muaj pes tsawg leeg

Titanium alloy muaj kev ua tau zoo tag nrho, yog cov khoom siv zoo heev, siv dav. Txawm li cas los xij, tus nqi-zoo ntawm titanium alloy yog qhov tsawg, cov khoom tsis yooj yim rau machining, tus nqi siab. Los ntawm txoj kev casting, tshwj xeeb tshaj yog precision casting tuaj yeem ncaj qha tsim cov khoom zoo li qub, tshem tawm ntau cov txheej txheem machining, yog li kev siv tus nqi ntawm cov khoom yog nce mus txog 90%.

Cam khwb cia titanium alloys feem ntau muab faib ua a, a + B thiab alloys raws li theem muaj pes tsawg leeg, raws li kev cai kuj tau muab faib ua cam khwb cia siab zog, kub-resistant thiab corrosion-resistant titanium alloys. Ntawm lawv cam khwb cia Ti-6Ai-4V thiab T5Ai-2.5Sn yog siv ntau dua cam khwb cia titanium alloys, uas yog tus cwj pwm los ntawm nruab nrab lub zog thiab kub tsis kam, corrosion kuj, thiab zoo. plasticity, tshwj xeeb tshaj yog tsim rau aerospace cav thiab cov qauv castings. Lub Tebchaws Asmeskas tau tsim cov hlau nplaum Ti6242 (Ti-6Ai-2sn-4Zr-2}Mo) tuaj yeem ua haujlwm ntawm 500 degree, tuaj yeem siv rau aerospace cav compressor qhov chaw, suav rau txog casting titanium alloy ntau npaum li cas ntawm ntau tshaj 2%. Tuam Tshoj tus ZTC6 yog raws li Ti6242 alloy txoj kev loj hlob ntawm ib tug nyob ze-alpha hom titanium alloy, lub alloy cov ntsiab lus ntawm txhuas yog tswj ntawm 8% los yog tsawg dua, high-temperature thermal stability yog zoo, tau siv rau lub cav qhov chaw hauv qab no 500 degree. ZTC3 (Ti-Al-Mo-Si system) kuj tseem siv tau rau lub sijhawm ntev hauv qab 500 degree, vim qhov sib ntxiv ntawm lub ntiaj teb tsis tshua muaj Ce, cov hlau alloy muaj cov khoom siv hluav taws xob zoo heev. Casting Ti153 alloy (Ti-15V-3Al-3Cr-3Sn) belongs rau sub-stable B-hom high-strength titanium alloy, cov alloy tuaj yeem ua tau zoo kev daws teeb meem thiab kev laus muaj zog, lub alloy lub zog tuaj yeem ncav cuag ntau dua 1,200MPa, thiab cov hlau muaj ntau dua 5% elongation. ZTC5 alloy yog tus kheej-tsim high-strength titanium alloy, uas yog kub-resistant titanium alloy raws li Ti- Al-Mo-Sn-Zr system. Nws yog ib hom + hom casting titanium alloy tsim los ntawm Ti-Al-Mo-Sn-Zr system kub-resistant titanium alloy, los ntawm kev sib ntxiv ntawm cov ntsiab lus ceev eutectic, txhim kho lub zog ntawm cov hlau thaum laus, cov hlau tsis yog tsuas yog lub zog siab thiab siab tawv, tab sis kuj siv cov nram qab no 350 degree, muaj thermal stability zoo heev.