Titanium alloy sawv ua cov khoom tseem ceeb hauv kev siv hlau niaj hnub no, muaj npe nrov rau nws lub zog tshwj xeeb - rau - qhov hnyav piv thiab superior corrosion kuj. Cov khoom no ruaj ntseg nws lub luag haujlwm tseem ceeb thoob plaws aerospace, marine engineering, khoom siv kho mob, thiab cov khoom siv khoom kim heev. Nkag siab txog cov txheej txheem tshwj xeeb uas yuav tsum tau ua los ua cov hlau no yog qhov tseem ceeb rau cov tuam txhab lag luam txhawm rau txhawm rau txhawm rau ua tiav nws lub peev xwm.
Txoj kev loj hlob ntawm kev lag luam titanium, txawm tias tseem hluas dua piv rau cov hlau ib txwm muaj, tau nce zuj zus los ntawm kev tsim kho raws li cov txheej txheem metallurgical tsim. Cov hlau tsoos- cov txheej txheem tsim cov txheej txheem muab lub hauv paus txheej txheem, tab sis titanium cov yam ntxwv tshwj xeeb xav tau kev hloov pauv tseem ceeb. Nws tsis tshua muaj plasticity, siab deformation tsis kam, thiab nyiam oxidize ntawm qhov kub thiab txias yuav tsum tau kho cov kev daws teeb meem.
Lub hauv paus rau kev ua titanium yog thermomechanical plasticity- kev siv lub zog tswj kom induce mus tas li deformation tsis tawg. Cov txheej txheem no hloov cov titanium ingots rau hauv cov ntaub ntawv wrought xws li daim hlau, strips, thiab foils los ntawm ib ntu ntawm kev tswj xyuas kev ua haujlwm. Txhua theem yuav tsum suav rau cov khoom rhiab heev rau qhov kub thiab txias thiab deformation keeb kwm.
Kev tsim cov titanium phaj, ntawv, thiab ntawv ci yuav tsum muaj ntau cov kauj ruam meej, nrog rau kev npaj slab, cua sov, kub dov, sov dov, thiab txias dov. Kub dov yog qhov tseem ceeb tshwj xeeb rau kev ua tiav qhov xav tau microstructure thiab cov khoom siv kho tshuab. Kev ua haujlwm yuav tsum tau ua nyob rau hauv cov cheeb tsam tshwj xeeb- zam dhau - theem raug- txhawm rau txhim kho cov qauv nplej thiab txhim kho cov khoom kawg.
Sov dov muaj qhov zoo sib xws los ntawm kev txo cov oxidation thiab tshem tawm cov kev xav tau ntawm nruab nrab annealing. Txoj kev no txhim khu kev ua tau zoo thiab qhov chaw zoo, tshwj xeeb tshaj yog rau cov ntsuas nruab nrab. Rau thinner foils, txias dov ua raws li recrystallization annealing yog ua hauj lwm los tswj kev ua hauj lwm hardening thiab ua tiav qhov kawg qhov ntev thaum tswj cov khoom siv.
Qhov tseem ceeb rau kev ua tiav yog kev tswj xyuas meej ntawm kev ua haujlwm xws li qhov kub thiab txias, deformation tus nqi, thiab tag nrho tus nqi txo. Alloy-Txoj kev hloov pauv yuav tsum tau ua tib zoo saib xyuas kom tsis txhob muaj qhov tsis xws luag thiab ua kom muaj kev ua tau zoo ib yam. Microstructural tswj los ntawm recrystallization thiab theem transformation yog qhov tseem ceeb rau kev ua tiav cov hom phiaj hauv cov khoom tiav.
Lub titanium ua lag luam txuas ntxiv mus rau qhov kev xav tau los ntawm kev lag luam tawm tshiab suav nrog lub zog tauj dua tshiab thiab biomedical engineering. Kev nce qib hauv kev siv tshuab dov, huab cua tswj, thiab cov txheej txheem automation yog tsav kev txhim kho hauv kev ua tau zoo thiab kev ua haujlwm zoo. Kev sib koom tes ntawm kev lag luam thiab cov chaw tshawb fawb yuav yog qhov tseem ceeb rau kev kov yeej cov teeb meem tsis tu ncua thiab nthuav dav cov kev siv ntawm cov khoom tshwj xeeb no.
Cov kev vam meej yav tom ntej yuav nyob ntawm qhov kev hloov tshiab txuas ntxiv hauv cov txheej txheem thev naus laus zis thev naus laus zis, ua kom muaj ntau qhov geometries thiab cov yam ntxwv ua tau zoo dua qub - ntxiv dag zog rau titanium cov xwm txheej raws li cov khoom ntawm kev xaiv rau siab - cov ntawv thov muaj txiaj ntsig.
