Lub hauv paus rau phau ntawv
Titanium alloys tau dav siv nyob rau hauv Aerospace, biomedical, thiab tshuaj lom neeg lub zog-rau-hnyav piv, thiab biocompatibility. Txawm li cas los xij, lawv cov khoom siv mechanical tuaj yeem txhim kho txuas ntxiv los ntawm kev tswj cov txheej txheem kev kho cua sov.
Cov Txheej Txheem Cua Sov
1. Annealing
Annealing Relieves sab hauv kev ntxhov siab thiab txhim kho ductility los ntawm:
Recrystallization annealing (650-800 degree) rau cov ua haujlwm txias-ua haujlwm
Beta annaling (saum toj -transus kub) rau coarse nplej qauv
Duplex annealing rau optimized alpha-beta theem faib
2. Ntshav kev kho mob thiab kev laus (STA)
Sta txhim kho lub zog los ntawm kev ua kom muaj zog:
Kev kho cov tshuaj kho hauv + lossis theem teb (850-950 degree)
Ceev ceev quenching kom khaws cov theem metastable
Kev laus ntawm 480-650 degree rau precipitate zoo hais
3. Beta ua
Koom nrog kev ua haujlwm thiab kev kho kub kho saum toj saud -transus kub rau:
Tsim duab Lamellar Micrchtructures
Txhim kho cov pob txha tawv tawv
Txhim kho cov quav
Hloov kho microstructural
Kev kho cua sov inces tseem ceeb theem kev hloov pauv:
Alpha Theem (HCP): muab lub zog thiab ruaj khov
Beta Theem (BCC): Txhim kho kom muaj kev lees paub thiab tawv
Martensite ('): cov qauv thaum lub sijhawm quenching ceev, nce hardness
Qhov ntim feem thiab morphology ntawm theem no txiav txim siab kawg cov khoom.
Cov Khoom Siv Cov Khoom Siv
Lub cev kho cua sov kom tsim nyog tuaj yeem:
Nce tensile lub zog los ntawm 20-40% los ntawm kev ua kom muaj nag lossis daus
Txhim kho kev qaug zog tiv thaiv los ntawm kev txhim kho theem faib
Txhim khu kev txhim kho corrosion los ntawm homogenizing microstructure
Tswj thermal stability rau kev siv kub-kub
Muaj Cov Ntawv Thov
Aerospace Cheebtsam
Cov Hluav Taws Xob Hluav Taws Xob Compressor (Sta-Kho Ti -6 al {2}} v)
Airframe qauv (beta-annealed ti {{v} v {{fe {} fe {3}} al)
Biomedical kev cog lus
Annealed Ti -6 al -7 nb rau cov khoom siv orthopedic
Sta-kho Ti -15 mo rau kev siv hniav
Cov Khoom Siv Tshuaj
Ob lub atchealed Ti-PD alloys rau kev xeb ib puag ncig
Kev cov nyom thiab nrhav
Tsis ntev los no kev tsim tawm chaw nyob tseem ceeb:
Thermialchemical ua rau cov npoo tawv
Additive Raug Tom Qab Ua Rau Am Titanium Qhov Chaw
Kev ua qauv qauv ua qauv los kwv yees theem kev hloov pauv
Tag
Kev kho cua sov yog qhov tseem ceeb rau kev xauv lub peev xwm tag nrho ntawm titanium alloys. Los ntawm kev ua tib zoo tswj qhov kub thiab txias mus thiab tus nqi txias, engineers tuaj yeem bardor microstructures rau kev xav tau kev ua tau zoo. Kev Tshawb Fawb Ntxiv Ntxiv txuas ntxiv mus nthuav dav cov txheej txheem ua thiab txhim kho kev kho mob tshiab rau cov ntawv thov kom muaj cov ntawv thov tam sim no.
Kev xaiv kom tsim nyog thiab ua kom zoo ntawm kev kho kom sov nyob tseem ceeb rau kev ua tiav ntawm lub zog, kev ua tsis tau zoo nyob rau hauv titanium Cheebtsam thoob plaws kev lag luam. Kev nce qib yav tom ntej yuav ua rau muaj cov txheej txheem hluav taws xob txuag hluav taws xob thiab digital ntxaib thev naus laus zis rau kev tswj hwm micros microstructure tswj.
