Raws li lub teeb alloy uas yog qhov tseem ceeb rau cov khoom siv thauj mus av, cov kws kho tshuab macroscopic ntawm aluminium alloy yog ze rau nws cov microstructure. Los ntawm kev hloov pauv cov ntsiab lus tseem ceeb hauv cov qauv txhuas alloy, thiab lwm yam khoom (xws li corrosion tsis kam thiab txhim kho kev txhim kho. Txog tam sim no, microalroying tau dhau los ua kev cuam tshuam tshaj plaws thev naus laus zis ntawm aluminium alloys thiab txhim kho cov khoom siv zoo ntawm cov ntaub ntawv txhuas alloy.Scandium(SC) yog cov khoom siv microalloy zoo tshaj plaws enhancer paub rau aluminium alloys. Lub solubility ntawm scandium hauv txhuas matrix yog tsawg dua 0.35 wt.%, Hardness, muaj kuab, yas, thermal stability, thiab corrosion tsis kam. Scandium muaj ntau lub cev cuam tshuam hauv txhuas alloys, suav nrog cov tsis muaj zog ntxiv, thiab cuam tshuam txog kev rov ua haujlwm. Kab lus no yuav qhia txog kev txhim kho keeb kwm, kev nce qib tshiab, thiab cov ntawv thov muaj peev xwm ntawm scandium muaj aluminium alloys hauv kev tsim khoom aviat.
Kev Tshawb Fawb thiab Kev Loj Hlob Ntawm Aluminium Scandium Alloy
Qhov sib ntxiv ntawm scandium ua ib qho kev sib txuam kom aluminium alloys tuaj yeem raug rov qab mus rau xyoo 1960. Lub sijhawm ntawd, feem ntau ntawm cov haujlwm tau nqa tawm hauv binary al s sc thiab ternary algg sc alloy nruab. Xyoo 1970, lub koom haum Bayking ntawm Metallurgy thiab cov ntaub ntawv kev tshawb fawb ntawm kev tshawb fawb Alloet ntawm daim qauv thiab kev tshawb fawb ntawm scandium hauv aluminium alloys. Tom qab yuav luag li plaub caug xyoo ntawm kev siv zog, 14 qib ntawm Alloys Alloys tau tsim hauv peb qhov loj (Al Mg sc, Al Zn MG sc). Lub solubility ntawm scandium atoms hauv txhuas yog tsawg, thiab los ntawm kev siv cov txheej txheem kho cua sov tsim nyog Qhov no los nag lossis muaj kev faib tawm me me, nrog kev sib raug zoo me me, thiab muaj kev sib raug zoo yooj yim, thiab muaj kev sib raug zoo heev, uas muaj peev xwm txhim kho lub zog yooj yim ntawm txhuas lub zog ntawm aluminium alloys. Tsis tas li ntawd, Al3SC nano preco precipitates muaj zoo thermal ruaj khov thiab nyob rau hauv 400 ℃), uas yog qhov muaj zog heev rau lub zog cua sov tsis kam ntawm cov alloy. Nyob rau hauv Lavxias tau txhuas ua txhuas scandium alloys, 1570 alloy tau nyiam ntau dua vim nws lub zog siab tshaj plaws thiab cov ntawv thov dav. No alloy cov pov thawj kev ua tau zoo nyob rau hauv kev ua haujlwm kub ua haujlwm, Magnesium Alloy (Magnesium Alloy) rau cov pa roj oxygen nruab nrab, nrog kev ua tau zoo. Tsis tas li ntawd, Lavxias kuj tau tsim txhuas zinc magesium scandium alloys, sawv cev los ntawm xyoo 1970, nrog rau lub zog khoom ntawm dhau 500mpa.
Cov xwm txheej ntawmAluminium scandium alloy
Nyob rau hauv 2015, European Under qhov tso tawm lub "European Metallurgical Roadmap: cov kev cia siab rau cov neeg tsim khoom lag luam thiab cov neeg siv kawg", thov kom kawm cov weldability ntawm txhuasMagnesium Scandium AlloysCov. Nyob rau lub Cuaj Hlis 2020, European Union tso tawm cov npe ntawm 29 tus yuam sij ntawm cov ntxhia cov peev txheej, suav nrog scandium. Lub 5024h11 aluminium magnesium alloy tsim los ntawm ale txhuas hauv lub teb chaws Yelemees muaj qhov nruab nrab thiab ua rau nws muaj cov khoom siv cog lus rau cov tawv nqaij fuselage. Nws tuaj yeem siv los hloov cov tsoos 2xxx series alloys alloys thiab tau suav nrog cov Airbus 'AIMS03-01-055 cov khoom siv phau ntawv qhia txog phau ntawv. 5028 yog qib kev txhim kho 5024, haum rau laser vuam thiab kev sib txhuam ua kom muaj vuam vuam. Nws tuaj yeem ua tiav cov txheej txheem nkag mus ntawm hyperbolic artalt phab ntsa panels, uas yog corrosion-resistant thiab tsis xav tau txhuas txheej. Piv nrog 2524 alloy, lub vaj huam sib luag phab ntsa tag nrho cov qauv ntawm Fuselage tuaj yeem ua tiav txoj kev txo qis 5% txo qis. AA5024-H116 Txhuas Scandium Alloy Ntawv Tsim los ntawm Aili Aluminoy lub tuam txhab tau siv los tsim cov dav hlau fuselage thiab chaw txua nkoj sib xyaw ua ke. Cov ntaub ntawv tuab ntawm AA5024-H116 Alloy Daim Ntawv yog 1.6mm, thiab vim nws txoj kev sib txawv qis, nws tuaj yeem hloov 2524 alloy raws li cov khoom siv fuselage. Tam sim no, AA5024-H116 Alloy Daim Ntawv tau muaj ntawv pov thawj los ntawm Airbus Aims03-04-055. Lub Kaum Ob Hlis 2018, Ministry of Kev Lag Luam thiab Cov Ntaub Ntawv Technology ntawm Tuam Tshoj tso tawm cov ntsiab lus ntawm cov ntsiab lus ntawm cov ntsiab lus theem nrab "hauv kev tsim kho cov khoom lag luam ntawm cov ntaub ntawv kev lag luam tshiab. Hauv 2019, Ministry of Kev Lag Luam thiab Cov Ntaub Ntawv Technology ntawm Tuam Tshoj tso tawm cov ntaub ntawv cov khoom siv tshiab (2019 Tuam Tshoj Txhuas pab pawg Northast teeb alloy tau tsim ib qho al mg sc zr series 5B70 alloy muaj scandium thiab zirconium. Piv nrog tsoos al mg series 5083 alloy tsis muaj scandium thiab zirconium, nws cov txiaj ntsig thiab tensile lub zog tau nce ntau dua 30%. Ntxiv mus, lub mg sc zr zr alloy tuaj yeem tswj hwm corrosion sib piv tiv taus 5083 alloy. Tam sim no, lub ntsiab hauv kev lag luam tseem ceeb nrog qib kev muaj tshebaluminium scandium alloyMuaj peev xwm ntau lawm yog cov teeb counterast teeb alternoy lub tuam txhab alloy thiab qab teb kev lag luam. Qhov loj-qhov loj me 5b70 txhuas txhuas txhuas txhuas cov ntawv tsim los ntawm NorthE Alloy tuab cov phaj ntawm 70mm thiab ntau tshaj plaws ntawm 3500mm; Nyias cov khoom lag luam thiab cov khoom lag luam profile tuaj yeem kho tau rau ntau lawm, nrog ib qho tuab ntawm 2 hli thiab ntau tshaj plaws ntawm 1500mm. Qab teb tau dhau los muaj ywj pheej tsim 5k40 cov khoom siv tseem ceeb hauv kev txhim kho daim hlau nyias. Al Zn MG Alloy yog lub sijhawm tawv tawv muaj zog nrog lub zog siab, kev ua haujlwm zoo, thiab kev ua tau zoo vuas tau zoo. Nws yog qhov tsis tseem ceeb thiab cov khoom siv tseem ceeb hauv cov khoom thauj mus los tam sim no xws li dav hlau. Ntawm lub hauv paus ntawm nruab nrab lub zog weldable alzn mg, ntxiv kev hloov pauv me me thiab discoy Kev tshawb fawb Langley ntawm NASA tau tsim cov ternary aluminium alloy nrog qib C557, uas tau npaj los thov cov qauv ua haujlwm. Lub zog zoo li lub zog, tawg tawm, thiab pob txha lov ntawm no ntawm qhov kub ntawm qhov kub thiab txias (107 ℃) tau sib npaug lossis zoo dua li cov 2524 alloy. Northwernesern University hauv Tebchaws Asmeskas tau tsim kho Alzn Mg Sc Alloy 7000 Series ultra-siab lub zog Alloy, nrog lub Tensile lub zog txog 680MPA. Tus qauv ntawm kev sib koom tes ntawm nruab nrab lub zog aluminium scandium alloy thiab ultra-siab lub zog al zn mg sr tau tsim. Al Zn MG Cu alloy yog lub siab-zog aluminium alloy nrog lub tensile muaj zog tshaj 800 MPa. Tam sim no, cov nomall composition thiab kev ua haujlwm yooj yim ntawm cov qib tseem ceeb ntawmaluminium scandium alloyyog cov ntsiab lus raws li hauv qab no, raws li qhia hauv cov rooj 1 thiab 2.
Rooj 1 | Nomaves sib xyaw ntawm txhuas scandium alloy
Rooj 2 | Micructure thiab tensile cov khoom ntawm txhuas scandium alloy
Daim Ntawv Thov Kev Pab Cuam ntawm Aluminium Scandium Alloy
Siab zog ib Zn MG CU sc thiab Al Lub dashboard ntawm Lavxias teb sab Aspecraft "Mars-1" yog ua los ntawm 1570 txhuas kev scandium alloy, nrog tag nrho cov hnyav txo ntawm 20%. Cov khoom siv thauj khoom ntawm cov ntsuas ntsuas ntawm Mars-96 lub dav hlau tau ua los ntawm 1970 alloy muaj scandium, txo qhov hnyav ntawm lub ntsuas module los ntawm 10%. Nyob rau hauv "Qhov kev pab tu ntuj thiab EU's" 2050 lub dav hlau ya mus rau A321 Aluminium Scandium alloys sawv cev los ntawm AA5028 qhia tau ua qauv zoo heev thiab kev ua haujlwm vuam. Siv cov kev sib txhuam siab los ntawm kev sib txhuam tawm vuam thiab laser vuam kom ua tiav kev sib txuas tau zoo ntawm scandium muaj cov ntaub ntawv txhuas cov ntaub ntawv. Kev siv cov lus me me ntawm "vuam hloov riveting" hauv dav hlau txhawb nqa cov ntaub ntawv nyias nyias uas tsis yog tswj hwm cov khoom siv dav hlau thiab tsis muaj txiaj ntsig, tab sis kuj muaj qhov hnyav txo thiab cov teebmeem nyhav thiab sib khi. Daim ntawv thov kev tshawb fawb ntawm Aluminium Scandium 5B70 alloy los ntawm Tuam Tshoj Kws Tshaj Lij Tshaj Tawm thiab kev tswj hwm kev sib raug zoo, thiab tswj cov vuam kev ntxhov siab. Nws tau npaj txhuas scandium alloy adrcorting coefficient ntawm kev sib txhuam ua rau tuab cov hlau nyob rau hauv lub alloy tuaj yeem ncav cuag 0.92. Tuam tsev kawm txuj ci siab, Central cov txheej txheem kev xaiv ntawm cov qauv txheej txheem ntawm 5A06, thiab tau pib cov qauv txheej txheem ntawm cov chaw nres tsheb Lub vaj huam sib luag ntawm lub vaj huam sib luag tag nrho ntawm cov qauv phaj xovxwm tsim cov tawv nqaij thiab kev sib koom ua ke ntau dua thiab qhov hnyav dua. Thaum txhim kho tag nrho rigidity thiab lub zog, nws txo tus lej thiab kev sib txuas ntawm kev sib txuas Cheebtsam, yog li txo qhov hnyav thaum tswj kev ua haujlwm siab. Nrog rau kev nce qib ntawm daim ntawv thov ntawm 5b70 khoom siv engineering, kev siv ntawm cov khoom siv tsawg kawg, uas yuav pab kom muaj cov khoom siv tsis ntev los no, thiab cuam tshuam ntau ntxiv rau cov nqi siv raw. Raws li tau hais ua ntej, txawm hais tias ntau yam khoom ntawm txhuas alloys tau txhim kho los ntawm scandium microalloying, tus nqi siab ntawm scandium txwv cov ntawv thov ntau yam ntawm txhuas scandium alloys. Piv nrog cov ntaub ntawv txhuas alloy xws li Al Cu, Al Znmg, uas ua rau lawv muaj cov kev tsim khoom zoo, thiab cov khoom siv ua kom zoo dua qub hauv kev lag luam xws li aerospace. Nrog kev txuas ntxiv mus ntxiv ntawm kev tshawb fawb ntawm scandium microolloying technology thiab kev txhim kho cov khoom siv sib txuam ntawm scandium alloys yuav maj mam txhim kho. Qhov zoo dua cov khoom siv kho mob, corrosion tsis kam, thiab kev ua kom hnyav hnyav ua rau lawv muaj peev xwm siv tau qhov hnyav ntawm huab cua kev tsim khoom.
Lub Sijhawm Post: Oct-29-2024