Ti {-6 al {{1} v titanium alloy yog ib qho ntawm feem ntau cov khoom siv tshuaj, corrosion tsis zoo thiab zoo biocompatibility. Hauv daim ntawv no, los ntawm cov tshuaj lom neeg muaj pes tsawg leeg ntawm ti {2}} al {v tagnrho lub koom haum sib txawv thiab nws cov cawv ntawm alloy cov yam ntxwv. Los ntawm kev txheeb xyuas cov kev sib raug zoo ntawm cov khoom siv ua haujlwm, cov qauv kev ua kom zoo thiab cov kev sib tw ntawm cov kev siv thiab cov ntsiab lus ntawm kev tshawb fawb yav tom ntej.
I. OVERVIEW NTAWM Ti -6 AL -4 v titanium alloy
Ti {-6 al {{v titanium alloy, nrog} v, {} {}, 6% aluminium thiab 4% vanadium. Lub alloy muaj ntau lub zog muaj zog heev, zoo heev corrosion tsis kam thiab biocompatibility, thiab tau dhau los ua cov khoom tseem ceeb hauv aerospace thiab kev kho mob. Txawm hais tias nws qhov kev ua tau zoo nyob rau hauv ntau yam qauv qauv thiab lawv cov tshuaj lom neeg ntawm cov khoom siv yog tseem kub cov ncauj lus ntawm cov kev tshawb fawb tam sim no. Tshwj xeeb, cov modulity elastic ntawm alloy, raws li kev ntsuas tseem ceeb ntawm nws cov khoom siv neeg, yog qhov tseem ceeb rau kev tsim qauv thiab ua kom zoo rau kev siv cov titanium alloys.
Ii.chemical sib sau tshuaj tsom xam ntawm Ti -6 al -4 v titanium alloy
Cov tshuaj lom neeg muaj kuab lom ntawm Ti -6 al {{1} v alloy muaj cov qauv txiav txim siab ntawm nws cov qauv kev sib cav. Cov ntsiab lus tseem ceeb ntawm titanium yog txhuas thiab vanadium, ntawm uas txhuas feem ntau txhawb kev ruaj ntseg ntawm -pas, thaum vanadium ua rau cov -Phas muaj qhov ruaj khov. Cov feem ze ntawm cov -phase thiab the -phase bigs cuam tshuam rau microstructure thiab cov khoom ntawm alloy. Cov ntsiab lus sib txawv ntawm txhuas thiab vanadium hauv ti {}} al {v alloy yuav ua rau cov qauv theem sib txawv thiab cov khoom siv mechanies. Piv txwv li, cov plasticity thiab duction ntawm alloy yog txhim kho nrog cov ntsiab lus ntau dua, thaum ntxiv rau ntawm lub zog thiab kub tsis kam ntawm cov alloy.
Aluminium hauv ti -6 al {{l} v alloy, yog li nws tuaj yeem tsim nyog rau aleasts, yog li lwm cov teb uas xav tau lub zog siab thiab nyhav qis. Qhov sib ntxiv ntawm vanadium ntau dua txhim kho cov corrosion tsis kam ntawm alloy, muab nws lub neej kev pab ntau nyob hauv cov tshuaj lom neeg thiab cov tub rog ib puag ncig. Lwm cov ntsiab ntawm titanium, xws li hlau, oxygen thiab nitrogen, kuj feem ntau lub ntsiab zoo ntawm cov alloy alloys muaj kev sib tham zoo ntawm cov ntsiab lus.
III. Organizational qauv ntawm Ti -6 al -4 v alloy thiab nws cov nyhuv ntawm elastic modulus
Lub ti -6 -4 v alloy nthuav tawm ib coexisting qauv ntawm -phase thiab-taws hauv lub xeev ruaj khov. -Phase muaj lub ntsej muag-nruab nrab Hexagonal Lattice qauv (HCP), thaum -thhaub muaj lub cev-nruab nrab lotice lattic qauv (BCC). Ob lub tshuab ua lead ua no ua lub luag haujlwm tseem ceeb hauv cov khoom siv cov khoom siv ntawm cov alloys, tshwj xeeb tshaj yog nyob rau hauv qhov qhia ntawm Elastic Modulus. Feem ntau, cov-tshuaj muaj cov modastic modulus siab, thaum lub -phia yog tsawg. Yog li ntawd, elastic modulus ntawm ti {10}} al {{... v alloys tsuas yog cuam tshuam los ntawm / theem.
Hauv cov ntsiab lus annealed xeev, microstructure ntawm ti {}} v alloy al ... {1} txiav txim siab tus modloast modulus ntawm alloy. Nrog rau kev nce ntawm anneal ntawm -phas nce thiab cov nyiaj txo qis, ua rau kev txo qis ntawm cov modulus loj heev ntawm cov alloy. Tom qab cov txheej txheem kho cua sov sib txawv (piv txwv li, kev kho mob--ag nrho cov qauv ntawm Ti {} v alooy hloov, uas cuam tshuam ntxiv rau nws cov modulus loj. Cov khoom moldulus thiab cov neeg kho tshuab ntawm cov alloy tuaj yeem yog tsim nyog los ntawm kev tsim nyog tswj hwm cov txheej txheem anealing thiab kev sib xyaw sib xyaw.
Kev sib txheeb ntawm cov mapminat modulus thiab lwm yam khoom ntawm ti -6 {1} v alloy
Cov modulus ntawm elasticity yog qib ntawm cov khoom siv thaum nws tseem ceeb ntawm {} {1} {1} {1} {1} {1}} Thauj khoom, yog li ua kom tiav nws cov qauv kev ruaj ntseg. Hauv kev siv Aerospace, cov modulus ntawm elasticity ntawm ti {}} v alloys muaj kev xav tau ob lub zog siab thiab qhov hnyav.
Txawm li cas los xij, cov modulus siab ntawm Elasticity ntawm Ti {}} v alloys yuav ua rau muaj kev ntxhov siab ntawm qee qhov kev ntxhov siab. Yog li, ua kom zoo dua tus qauv txheej txheem ntawm alloy kom txo cov modulus loj heev tau dhau los ua qhov kev ua tau tseem ceeb los txhim kho nws txoj kev ua tau zoo. Cov kev tshawb fawb tsis ntev los no tau pom tias Elastic Modulus tuaj yeem hloov kho kom zoo ntawm cov alloy thiab kev txhim kho theem kev sib xyaw ua ke thiab kev ua haujlwm morphology ntawm alloy rau kev siv sib txawv.
