Scandiumyog ib qho kev hloov pauv thiab ib qho ntawm cov ntsiab lus tsis tshua muaj ntiaj teb. Nws muaj cov khoom zoo xws li softness, active tshuaj zog, siab conductivity thiab tsis tshua muaj lub ntiajteb txawj nqus. Thaum ntxiv rau aluminium alloys, nws tuaj yeem txhim kho lub zog, toughness thiab lwm yam khoom ntawm cov alloys. Nws yog ib yam tshiab ntawm cov kab cim rau kev txhim kho ntawm lub zog siab, siab-kub-resistant thiab high-corrosion-resistant aluminium alloys. Txij li thaum lub melting point ntawm scandium yog siab heev, ntawm 1541 ° C, thaum lub melting point ntawm txhuas tsuas yog 660 ° C, lub melting point ntawm ob hlau yog txawv heev, yog li scandium yuav tsum tau ntxiv rau cov txhuas alloy nyob rau hauv daim ntawv. ntawm ib qho nruab nrab alloy. Yog li ntawd, lubaluminium-scandium intermediate alloyyog cov khoom siv tseem ceeb rau kev npaj ntawmaluminium-scandium alloys.
Ntxiv cov lej ntawm scandium (0.15 ~ 0.5wt%) rau aluminium alloy tuaj yeem ua lub luag haujlwm zoo alloying. Ua ntej, nws tuaj yeem ua kom zoo dua cov nplej ntawm cov cam khwb cia hlau thiab yog lub zog ua kom zoo rau cov khoom siv txhuas. Qhov thib ob, nws tuaj yeem ua kom qhov kub ntawm recrystallization los ntawm 250 ℃ ~ 280 ℃, tshem tawm cov txheej txheem recrystallized nyob rau hauv qhov chaw kub kub ntawm cov vuam, thiab cov txheej txheem subgrained ntawm matrix tuaj yeem hloov ncaj qha mus rau cov qauv cam khwb cia ntawm cov vuam kom tiv thaiv kub tawg. thiab txhim kho qhov qaug zog tawg tsis kam ntawm aluminium alloy. Nws yog ib qho zoo recrystallization inhibitor rau aluminium alloys thiab muaj qhov cuam tshuam loj rau cov qauv thiab cov khoom ntawm cov hlau, zoo heev txhim kho nws lub zog, hardness, elastic modulus, vuam kev ua tau zoo, kub tsis kam, corrosion kuj thiab tsis kam rau neutron tawg puas. Tam sim no, nws paub tias lub zog ntawmaluminium-scandium alloytuaj yeem ncav cuag ntau dua 750MPa, thiab cov qauv elastic tuaj yeem tshaj 100Gpa, uas yog 30% siab dua li cov tsoos aluminium alloys. Thib peb, nws tuaj yeem ua lub luag haujlwm zoo hauv kev ua kom muaj zog, ua kom muaj kev ruaj khov uas tsis yog-recrystallized nyob rau hauv lub xeev ntawm kub ua los yog annealing kev kho mob, thiab muaj cov yam ntxwv ntawm zoo kub thiab txias ua thiab siab thermal stability. Plaub, nws tuaj yeem ua rau aluminium alloys muaj superplasticity zoo. Tom qab kev kho mob superplastic, elongation ntawm aluminium alloys nrog txog 0.5% scandium ntxiv tuaj yeem ncav cuag 1100%.
Raws li cov khoom siv zoo heev ntawm aluminium-scandium alloys tau hais los saum toj no, tawg los ntawm lub fwj ntawm cov tsoos aluminium alloy lub zog, thiab tseem muaj kev ua haujlwm zoo, cov khoom ua los ntawm cov tshiab aluminium-scandium alloys tau maj mam pib tshwm nyob rau hauv kev lag luam ntawm cov teb chaws siab heev. raws li Tebchaws Europe thiab Tebchaws Meskas. Aluminium-scandium alloys yog ib hom kev ua haujlwm siab tshiab aluminium alloy nrog lub zog siab, siab tawv, thiab lub teeb yuag. Lawv yog cov khoom siv zoo tshaj plaws rau cov khoom siv dav hlau, cov tsheb kauj vab, cov koom haum golf, thiab lwm yam. Lawv kuj yog lub cim tshiab ntawm lub teeb yuag thiab kev ua haujlwm siab aluminium alloy structural cov ntaub ntawv rau kev txiav-ntug teb ntawm lub teb chaws tiv thaiv thiab tub rog kev lag luam xws li ships, aviation, aerospace, nuclear zog, thiab riam phom. Lawv feem ntau yog siv rau vuam load-bearing structural seem ntawm aerospace, aviation, thiab ships, raws li zoo raws li txhuas alloy kav rau alkaline corrosive media ib puag ncig, railway roj tso tsheb hlau luam, thiab cov yam ntxwv tseem ceeb ntawm cov tsheb ciav hlau ceev. Lawv tau siv dav hauv aerospace, tsheb thauj mus los, kev lag luam nuclear, electronics, ntim ntim, thiab lwm yam kev lag luam.
Tam sim no, muaj ntau tshaj li ib txhiab hom ntawm aluminium alloy cov ntaub ntawv nyob rau hauv lub ntiaj teb no, uas tau ua zoo pab rau tib neeg kev vam meej. Nrog rau txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis thiab kev txhim kho ntawm kev ua neej nyob, kuv lub teb chaws yog qhov xav tau kev tsim kho tshiab aluminium alloys tshiab. Txoj kev loj hlob ntawm cov nqi qis scandium-aluminium intermediate alloys tuaj yeem tsim lub hauv paus ruaj khov rau kev txhim kho cov ntaub ntawv ua tau zoo, txhawb kev loj hlob ntawm kuv lub teb chaws kev lag luam aluminium thiab scandium kev lag luam, thiab txhawb kev koom ua ke ntawm kuv lub teb chaws kev lag luam txhuas nrog cov thoob ntiaj teb aluminium kev lag luam. Yog li ntawd, qhov kev npaj ntawm aluminium-scandium (intermediate) alloy yog qhov tseem ceeb thiab tsim nyog, thiab yog ib qho tseem ceeb rau kev txhim kho cov ntaub ntawv aluminium alloy yav tom ntej.
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Post lub sij hawm: Oct-31-2024