TC4 titanium alloy, ib hom titanium alloy, tau ntse tsim los ntawm Tebchaws Meskas hauv xyoo 1954. Nws muaj 6% ruaj khov thiab 4% ruaj khov caij V. Cov nominal muaj pes tsawg leeg ntawm TC4 titanium alloy yog sib npaug rau 7. 0 aluminium, nrog molybdenum sib npaug ntawm 2.9. Hauv nws lub xeev annealed, cov hlau muaj 10% -15% beta theem. Qhov sib ntxiv ntawm txhuas txhim kho lub zog ntawm chav tsev kub thiab thermal lub zog ntawm cov hlau los ntawm kev ntxiv dag zog rau theem los ntawm kev daws teeb meem hauv Ti-Al-V system. Ntawm qhov tod tes, V ua haujlwm ua ib qho ntawm ob peb lub ntsiab lus alloying uas txhim kho lub zog thiab plasticity hauv titanium alloys. Tsis zoo li feem ntau cov ntsiab lus alloying, V muaj cov txiaj ntsig zoo ntawm cov yas ntawm titanium alloys raws li nws txo qhov c / a-axis piv ntawm -state lattice, txhawb kev tsim ntawm -theem thiab tiv thaiv lub sij hawm ntev alloy embrittlement thaum siv.
TC4 titanium alloy sawv tawm rau nws qhov tshwj xeeb tag nrho kev ua tau zoo thiab cov txheej txheem zoo. Cov alloy no nthuav tawm lub zog nruab nrab ntawm chav tsev kub thiab lub zog siab ntawm qhov kub siab. Nws ua rau pom kev zoo siab rau kev nkag siab thiab thermal stability, nrog rau kev qaug zog ua haujlwm siab thiab tawg tawm tsam hauv dej hiav txwv. Ntxiv mus, nws boasts txaus siab tawg toughness thiab thermal ntsev kev nyuaj siab corrosion kuj. TC4 titanium alloy kuj qhia txog txo hydrogen rhiab heev piv rau TC2 thiab TC1 alloys. Yog li ntawd, nws pom qhov tsim nyog hauv kev tsim ntau yam khoom siv uas ua haujlwm nyob rau hauv qhov dav ntawm qhov kub ntawm -196 txog 450 degree, tshwj xeeb tshaj yog cov khoom tsim nrog lub hauv paus ntsiab lus ntawm kev puas tsuaj rau lub siab.
Tsis tas li ntawd, TC4 titanium alloy qhia tau zoo heev ductility thiab superplasticity, ua rau nws haum rau shaping siv ntau txoj kev ua haujlwm siab. Nws kuj tseem qiv nws tus kheej zoo rau kev siv vuam thiab machining, muab ntau yam hauv cov txheej txheem fabrication.
TC4 titanium alloy muaj nyob rau hauv ntau hom semi-tiav, nrog rau cov tuav, forgings, nplooj ntawv, tuab daim hlau, profiles, thiab nyob ntawm tej. Tsis tas li ntawd, nws pom daim ntawv thov hauv castings (hu ua ZTC4).
TC4ELI Titanium Alloy
TC4ELI yog ib qho kev txhim kho ntawm TC4 titanium alloy, txawv los ntawm nws cov ntsiab lus hloov pauv ntawm txhuas thiab txo qis ntawm cov khoom sib txuas xws li hlau (Fe), nitrogen (N), hydrogen (H), thiab oxygen (O).
TC4ELI titanium alloy tau txais qhov tseem ceeb raws li cov khoom siv rau kev kho mob phais kev cog hniav vim nws qhov tshwj xeeb biocompatibility, tsis tshua muaj elastic modulus, lub teeb yuag, corrosion tsis kam, tsis muaj tshuaj lom, muaj zog tawm los, ntev lub neej qaug zog, ntau chav kub plasticity, thiab yooj yim ntawm formability. Hauv kev kho mob, TC4ELI titanium alloy nplooj ntawv feem ntau yog ua haujlwm rau cov ntawv thov xws li kho pob txha taub hau thiab kho pob txha, qhov kev xav tau nruj muaj zog, qaug zog lub neej, thiab yas.
Titanium alloy, suav nrog titanium ua lub hauv paus ntsiab lus nrog rau lwm cov khoom siv alloying, nthuav tawm ob lub qauv siv lead ua isomorphic. Hauv qab 882 degree, titanium txais yuav cov qauv hexagonal lattice hu ua -titanium, thaum nws hloov mus rau hauv lub cev-centered cubic lattice qauv hu ua beta-titanium saum toj 882 degree. Los ntawm kev ua tib zoo sib xyaw cov ntsiab lus alloying tsim nyog los hloov kho cov theem hloov pauv kub thiab cov khoom sib xyaw ua ke, titanium alloys nrog cov qauv sib txawv tuaj yeem tau txais, ua kom muaj txiaj ntsig ntawm cov yam ntxwv ntawm ob lub qauv no.
Lub tsev raws li lub hauv paus ntawm TC4 alloy, TC4ELI titanium alloy txo qhov muaj cov khoom sib txuam xws li carbon (C), oxygen (O), thiab nitrogen (N), nrog rau impurity element hlau (Fe), ua rau txo qis hauv zog. Txawm li cas los xij, qhov kev hloov kho no ua rau muaj peev xwm thiab toughness ntawm cov alloy. TC4ELI nthuav tawm cov yas zoo heev, tawv tawv, vuam kev ua tau zoo, thiab kev ua haujlwm kub qis, ua rau nws siv dav hauv cov haujlwm tseem ceeb xws li kev tsim hluav taws xob qis, kev kho mob, nkoj, thiab dav hlau.
Thaum TC4 alloy yog haum rau siv nyob rau hauv ib puag ncig zoo tib yam los yog high-kub ib puag ncig, TC4ELI alloy yog tshwj xeeb tsim los rau ultra-low-temperature ib puag ncig.
Cov qib sib piv rau TC4 titanium alloy thiab TC4ELI titanium alloy suav nrog T-6A-4V / Qib 5 (American qib), BT 6 (Russian qib), IMI 318 (British qib), thiab TiAI6V4 (German) qib).
Hauv thaj chaw ntawm kev tsim khoom siv kho mob, titanium thiab titanium alloys pom kev siv dav hauv kev hais txog pob txha thiab pob qij txha puas los ntawm kev raug mob thiab qog. Cov pob qij txha, pob txha daim hlau, thiab cov ntsia hlau feem ntau yog tsim los ntawm titanium thiab titanium alloys, uas tau txais kev lees paub dav hauv kev kho mob. Cov ntaub ntawv no yog siv rau hauv cov pob qij txha (xws li lub taub hau femoral), pob qij txha hauv caug, pob qij txha, lub luj tshib, cov pob qij txha metacarpophalangeal, cov pob qij txha interphalangeal, mandibles, cov pob txha pob txha (spinal orthoses), cov pacemaker vaj tse, lub siab lub ntsws (lub plawv li qub), kev cog hniav cuav, -Nickel hniav orthodontics, thiab titanium mesh rau cranioplasty. Lub zog tshwj xeeb, zoo heev biocompatibility, thiab tiv thaiv corrosion los ntawm lub cev kua ua rau titanium thiab titanium alloys nce nrhiav-tom qab cov ntaub ntawv.
Ti 6Al-4V ELI yog qhov sib txawv ntawm Ti 6Al-4V alloy uas muaj qhov sib txawv ntawm cov qauv nqaim, ua kom nws ua tiav qhov siab tshaj plaws. Qib no yog qhov tshwj xeeb zoo rau cov ntawv thov hauv dej hiav txwv thiab qhov chaw uas muaj qhov kub thiab txias. Feem ntau, Ti 6Al-4V ELI yog siv rau hauv lub xeev annealed thiab yog ib qho kev xaiv zoo tshaj plaws rau kev cog qoob loo.
Cov txheej txheem tsim khoom suav nrog kev so annealing, qhov twg cov hlau yog cua txias ntawm qhov kub ntawm 900 txog 1200 degrees Fahrenheit rau lub sijhawm 1 txog 4 teev. Rau puag ncig tuav thiab forgings, ob txheej txheem annealing yog ua haujlwm. Thaum pib, cov tshuaj annealing yog ua nyob rau ntawm qhov kub ntawm 50 mus rau 100 degrees Fahrenheit saum toj no beta hloov pauv point. Cov khoom yog tuav ntawm qhov kub thiab txias rau qhov tsawg kawg yog 1 teev ua ntej cua txias. Tom qab ntawd, cov hlau yog rov ua dua rau 1300-1400 degrees Fahrenheit tsawg kawg yog 1 teev thiab tom qab ntawd cua txias. Relaxation annealing yog pom zoo tom qab vuam ua haujlwm.
