Kev sib piv ntawm GR5 titanium alloy thiab GR5ELI titanium alloy
Cov nominal muaj pes tsawg leeg ntawm GR5 titanium alloy yog 7. Al txhim kho lub zog ntawm chav tsev kub thiab thermal lub zog ntawm cov hlau los ntawm cov khoom siv ntxiv dag zog rau theem hauv Ti-Al-V system, thiab V yog ib qho ntawm ob peb cov ntsiab lus alloy hauv titanium alloys uas tuaj yeem ua kom muaj zog thiab txhim kho plasticity. Cov txiaj ntsig zoo ntawm V ntawm cov yas ntawm titanium alloys yog tias nws tsis nce qhov sib piv ntawm -state lattice c/a axis zoo li feem ntau cov ntsiab lus alloy, tab sis txo qhov sib piv, yog li txhim kho qhov tsim ntawm theem thiab zam kev mus sij hawm ntev. siv. Alloy embrittlement tshwm sim thaum tus txheej txheem.
Cov yam ntxwv tseem ceeb ntawm GR5 titanium alloy yog cov khoom zoo heev thiab kev ua haujlwm zoo. GR5 titanium alloy muaj qhov nruab nrab qhov kub thiab txias lub zog, zoo creep kuj thiab thermal stability, siab qaug zog tsis kam thiab tawg propagation kuj nyob rau hauv dej hiav txwv, raws li zoo raws li puas siab puas ntsws toughness thiab kuj rau thermal ntsev kev nyuaj siab corrosion. Nws kuj tseem tsis tshua muaj siab rau hydrogen dua li Ti-4AL-1.5Mn thiab Ti-2AL-1.5Mn alloys, thiab yog tsim rau kev tsim khoom ntau yam ua haujlwm hauv qhov dav qhov kub ntawm -196 ~ 450 degree, tshwj xeeb tshaj yog cov khoom tsim los siv cov kev txwv kev puas tsuaj. GR5 titanium alloy kuj muaj cov txheej txheem zoo plasticity thiab superplasticity, thiab tsim nyog rau kev tsim siv ntau txoj kev ua haujlwm siab, thiab rau vuam thiab tshuab ua ntau txoj hauv kev.
Cov khoom tseem ceeb ntawm GR5 titanium alloy yog tuav, forgings, nyias daim hlau, daim hlau tuab, cov ntaub ntawv thiab cov xov hlau, thiab lwm yam, uas yog siv rau hauv castings (ZGR5).
GR5ELI titanium alloy
GR5ELI yog ib qho kev txhim kho ntawm GR5. Nws qhov sib txawv tseem ceeb yog qhov sib txawv Al cov ntsiab lus thiab cov ntsiab lus qis ntawm cov ntsiab lus Fe, N, H, thiab O.
GR5ELI titanium alloy tau dhau los ua kev kho mob kev cog hniav vim nws cov biocompatibility zoo, tsis tshua muaj elastic modulus, tsis tshua muaj ntom, zoo tiv thaiv corrosion, non-toxicity, siab yield zog, ntev qaug zog lub neej, loj plasticity ntawm chav tsev kub, thiab yooj yim tsim. cov khoom zoo tagnrho rau tej yam. Kev kho mob GR5ELI titanium alloy daim hlau feem ntau yog siv rau kev kho pob txha taub hau, pob txha grafting, thiab lwm yam, uas muaj cov kev xav tau ntau dua ntawm lub zog, qaug zog lub neej, plasticity, thiab lwm yam.
Titanium alloy yog ib qho alloy uas muaj titanium raws li lub hauv paus thiab lwm yam ntxiv. Titanium muaj ob isomorphous crystals: titanium yog ib qho isomer nrog lub melting point ntawm 1668 degree. Nws muaj ib tug kaw-packed hexagonal lattice qauv hauv qab 882 degree, uas yog hu ua -titanium; nws yog lub cev-centered cubic qauv saum toj no 882 degree. Cov qauv fret hu ua beta-titanium. Los ntawm kev siv cov yam ntxwv sib txawv ntawm cov saum toj no ob lub qauv ntawm titanium, ntxiv cov ntsiab lus alloying tsim nyog kom maj mam hloov cov theem hloov pauv kub thiab cov ntsiab lus, titanium alloys nrog cov qauv sib txawv tau txais.
Thiab cov ntsiab lus ntawm impurity caij Fe, lub zog yog txo, tab sis lub toughness tuaj yeem txhim kho tau zoo. GR5 ELI muaj cov yas zoo, tawv tawv, kev ua haujlwm vuam zoo thiab kev ua haujlwm kub qis, thiab tau siv dav hauv cov haujlwm tseem ceeb xws li cryogenic engineering, kho mob, nkoj thiab dav hlau.
GR5 alloy yuav siv tau nyob rau hauv ib puag ncig ib puag ncig lossis kub ib puag ncig, thiab GR5ELI alloy tuaj yeem siv rau hauv ib puag ncig kub kub.
GR5 titanium alloy thiab GR5ELI titanium alloy muaj cov qib zoo sib xws: T-6A-4V / Qib 5 (American qib), BT 6 (Russian qib), IMI 318 (British qib), TiAI6V4 (German qib ).
Kev tsim khoom siv kho mob: Rau cov pob txha thiab pob qij txha raug mob los ntawm kev raug mob thiab qog nqaij hlav hauv tib neeg lub cev, titanium thiab titanium alloys yog siv los tsim cov pob qij txha, pob txha daim hlau thiab cov ntsia hlau, uas tam sim no tau siv dav hauv kev kho mob. Kuj tseem siv tau rau hauv cov pob qij txha (xws li lub taub hau femoral), pob qij txha hauv caug, pob qij txha, pob qij txha, metacarpophalangeal pob qij txha, cov pob qij txha interphalangeal, mandibles, vertebrae (spinal orthoses), pacemaker shells, artificial hearts (lub plawv zoo li qub), artificial dentiums, nickel orthodontics thiab titanium mesh hauv pob txha taub hau yas phais, thiab lwm yam.
Titanium thiab titanium alloys tau txais kev saib xyuas ntau ntxiv vim lawv lub zog tshwj xeeb, biocompatibility, thiab zoo corrosion kuj rau lub cev kua.
Ti 6Al-4V ELI yog qib Ti 6Al-4V nrog cov qauv me me, uas tuaj yeem ua tiav qhov siab tshaj plaws thiab tsim nyog rau cov dej hiav txwv thiab qhov kub thiab txias. Qib no ntawm alloy feem ntau yog siv nyob rau hauv cov mob annealed. Ti 6Al-4V yog cov khoom xaiv zoo dua hauv kev kho mob cog.
Cov txheej txheem tsim khoom yog: nruab nrab so annealing ntawm 900-120 degrees Fahrenheit rau 1-4 teev thiab cua txias. Muab ob npaug rau annealing, round bars thiab forgings yog tov annealed ntawm ib tug beta hloov pauv kub ntawm 50-100 degrees Fahrenheit, tuav rau tsawg kawg yog 1 teev, ces cua txias, ces reheated ntawm 1300-1400 degrees Fahrenheit, tuav kom tsawg 1 teev, thiab tom qab ntawd cua txias. Relaxation annealing yog tsim nyog tom qab vuam.
