Titaniumyog ib yam khoom uas yooj yim tshaj plaws uas yog "lub teeb, muaj zog, thiab corrosion-resistant." Txawm tias tsis yog tag nrho, qhov no yog deb dhau simplistic. Thaum koj nyob rau ntawm qhov chaw xaiv khoom thiab kev ua tiav, cov lus nug tau nthuav dav ntxiv: Puas yog koj xa mus rau kev lag luam - qib ntshiab titanium lossis titanium alloy? Puas yog GR2 lossis GR5? Puas yog rau cov khoom siv hluav taws xob hluav taws xob los yog cov khoom siv hauv aerospace? Puas yog rau chav-kub load-cov kabmob lossis nruab nrab-kub load-cov kabmob hauv lub cav? Yog tias tsis qhia meej cov lus nug no, tsuas yog hais tias "titanium yog cov khoom siv zoo heev" yog qhov tseem ceeb tsis muaj qab hau.
Ntau tus neeg tau ntsib titanium thawj zaug thiab yuam kev ntseeg tias "titanium ntshiab" muaj qhov ua tau zoo tshaj plaws. Qhov kev nkag siab no yuav tsum tau kho dua. Txawm hais tias kev lag luam ntshiab titanium yeej muaj nws qhov zoo, nws lub zog dag tsis yog nyob rau hauv siab zog, tab sis nyob rau hauv corrosion kuj, zoo formability, weldability, thiab stability nyob rau hauv ntau yam xov xwm.
Qhov sib txawv ntawm GR1, GR2, GR3, thiab GR4 feem ntau yog los ntawm kev tswj cov khoom sib txuas xws li oxygen, nitrogen, thiab hlau. Ntau cov ntsiab lus interstitial nce lub zog tab sis feem ntau txo cov plasticity thiab formability. Yog li ntawd, koj yuav pom qhov tshwm sim tiag tiag: qhov "purer" titanium, qhov tsawg haum nws yog rau load- bearing; nws yuav ua tau softer thiab ntau haum rau nyias - phaj forming.
Vim li cas GR2 thiaj li muaj ntau? Tsis yog vim nws tsis paub, tab sis vim nws zoo - sib npaug. Rau kev ua titanium daim hlau, raj, ntim, khob, lauj kaub, thiab cov tshuaj lom neeg corrosion-cov khoom tiv taus, GR2 feem ntau txaus. Nws tsis hais txog lub zog siab zoo li GR5, thiab nws tsis raug nqi ntau dua rau qhov tshwj xeeb corrosive ib puag ncig zoo li GR7.
Titanium yog corrosion-resistant nyob rau hauv ntau qhov chaw vim hais tias nws muaj peev xwm tsim ib tug ruaj khov oxide zaj duab xis ntawm nws nto. Txawm li cas los xij, qhov no tsis txhais hais tias titanium yog invincible nyob rau hauv tag nrho cov tshuaj ib puag ncig. Cov tshuaj chlorine- muaj cov xov xwm, qhov chaw nyob ib puag ncig, tso nyiaj, txo cov kua qaub, thiab kub siab txhua yam teeb meem nyuaj. Qhov no yog qhov uas tus nqi ntawm corrosion-resistant titanium alloys zoo li GR7 thiab GR12 dag.
Ib txoj hauv kev zoo rau GR7 yog ntxiv me me ntawm palladium rau titanium, thaum GR12 feem ntau ua raws Ti-Mo-Ni corrosion- txoj kev tiv taus. Lawv lub hom phiaj tsis yog ua kom muaj zog, tab sis kom tswj tau qhov kev nyab xeeb nyob rau hauv ib puag ncig corrosive qhov chaw ruaj khov ntawm cov titanium zoo tib yam tsis txaus.
Cov ntaub ntawv no yog cov tswv yim zoo heev hauv cov khoom siv tshuaj. Rau cov khoom siv hluav taws xob los yog cov tshuaj tiv thaiv, cov khoom siv hluav taws xob me ntsis tuaj yeem ua tau, tab sis corrosion perforation, kev kaw ntau lawm, thiab kev xa tawm xov xwm yog qhov nyiaj tiag tiag.
Alpha- hom thiab nyob ze -alpha- hom titanium alloys yog cov yam ntxwv ntawm cov microstructures ruaj khov thiab feem ntau muaj lawv tus kheej zoo hauv weldability, siab - kub stability, los yog qis - kub ua haujlwm. Tej zaum lawv yuav tsis tas mus nrhiav chav siab tshaj - kub tensile lub zog, tab sis nyob rau hauv engineering, dab tsi yog feem ntau xav tau tsis yog ib qho kev ua tau zoo, tab sis cov khoom uas muaj kev ntseeg siab nyob rau lub sijhawm ntev nyob rau hauv qhov kub thiab txias, cov qauv tshwj xeeb, thiab cov txheej txheem tsim khoom tshwj xeeb.
Ntau qhov kev xav tsis zoo, qhov zoo tshaj plaws dispelled ua ntej:
Ua ntej, ntshiab titanium tsis yog qhov siab tshaj -kev ua tau zoo titanium. Ntshiab titanium feem ntau excels nyob rau hauv corrosion kuj, formability, thiab biocompatibility, tsis nyob rau hauv qhov kawg lub zog. GR1 yog softer dua GR2, thiab GR2 yog yooj yim rau tshuab dua GR5; qhov no feem ntau yog qhov tseem ceeb.
Qhov thib ob, GR5 feem ntau yog siv, tab sis qhov ntawd tsis txhais hais tias txhua qhov titanium yuav tsum siv GR5. Rau txhua hnub titanium khob, GR5 yuav tsis tsim nyog tshaj GR2; rau cov khoom siv cav ua haujlwm ntawm qhov kub nruab nrab, GR5 yuav tsis yog qhov kev xaiv zoo.
Qhov thib peb, tsis txhob mloog cov neeg muag khoom thaum nws los txog kev kho mob - qib titanium. Kev kho mob- qib ntshiab titanium, GR5 ELI, kho hniav titanium, thiab orthopedic implant titanium muaj cov qauv sib txawv thiab cov kev xav tau kuaj. Cov npe ntawm cov khoom yuav zoo sib xws, tab sis cov kev xav tau tiag tiag tuaj yeem sib txawv heev.
Plaub, titanium yog corrosion-resistant, tab sis tsis resistant rau tag nrho cov xov xwm. Crevices, kub, chloride ions, txo cov kua qaub, thiab galvanic corrosion tuaj yeem hloov kho cov txiaj ntsig. Qib zoo li GR7 thiab GR12 yog corrosion- tiv taus qhov tseeb vim tias txawm tias cov titanium zoo tib yam muaj nws cov kev txwv.
Thib tsib, titanium alloys yog kim, tsis yog vim cov khoom siv raw. Kev txiav, vuam, kev kho cua sov, tsis yog - kuaj kev puas tsuaj, kev kho saum npoo, thiab kev taug qab zoo tag nrho cov nqi nce ntxiv.
Yog li ntawd, cov neeg uas nkag siab tiag tiag cov ntaub ntawv titanium feem ntau tsis nug tam sim, "Qhov twg titanium yog qhov zoo tshaj plaws?" Lawv yuav xub nug: Nws yuav siv qhov twg? Yuav muaj zog npaum li cas? Qhov kub thiab txias? Qhov nruab nrab yuav siv li cas? Nws puas yuav welded? Nws puas yuav luam tawm? Nws lub neej raug xam li cas? Tus nqi puas txais tau? Tom qab nug cov lus nug no, qhov sib txawv ntawm GR1, GR2, GR5, thiab TC11 yuav pom tseeb.
Nyob rau hauv luv luv: lub superiority ntawm titanium cov ntaub ntawv tsis dag nyob rau hauv lub fact tias lawv nyob nraum hu ua titanium, tab sis nyob rau hauv lub fact tias txhua qib yog muab tso rau hauv lub tsim nyog cov ntsiab lus.
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