2A12-T4XopܺڏS 5083ϽX܃r
ŽQ(mo)˾һҼa(chn)c͵ľCԌI(y)˾н(jng)a(chn)(yng)XܣXXܡXyX壨СlXָX壩кXXϽXXXXXXXopXܡֱXɫXܣNXӹXܺӡXۏXܼӹXܴXۏXܺXľӹXϽӹXܾӹXXӹXƷӹȵ
2A12-T4XopܺڏS 5083ϽX܃rMӹMгCֱCƽ
ɝM|(zh)1060/110020142A12LY12,20172024300350525754ߵ05ߵ066201610660116351600560616262606364636082700370057075
˾cȫضҽ(jng)NԼI(y)Lڷ(wn)ĺP(gun)ϵ
2A12-T4XopܺڏS 5083ϽX܃rW(xu)ɷֵķܴr
6063XϽĻW(xu)ɷֳɞa(chn)(yu)XϽͲĵ^Ҫһh(hun)
ܵӰ
6063XϽAL-Mg-SiϵоеȏȵĿɟ̎폊ϽMgSiҪϽԪ(yu)xW(xu)ɷֵҪǴ_MgSiİٷֺ(|(zh)֔(sh)ͬ)
@ȡijЩҪ2A12-T4XopܺڏS 5083ϽX܃r
11MgúӰ MgSiMɏMg2SiMgĺߣMg2SiĔ(sh)̎폊ЧͲĵĿȾ׃οҲS֮ӴϽ½ӹ׃g׃
12SiúӰ SiĔ(sh)(yng)ʹϽеMgMg2SiʽԴ_Mgõõֵİl(f)]SSiϽľ׃ԼӴT׃ã̎폊ЧͲĵĿ߶Խg׃
x7075^ȏϽ֮һ2A12-T4XopܺڏS 5083ϽX܃r
21Mg2SiĴ_
211Mg2SiںϽе Mg2SiںϽSضȵ׃ܽԲͬΑB(ti)ںϽУ (1)ɢβ’’wMg2Siɢ|(zh)cһN(wn)࣬Sضȵ߶L (2)^β’ β’’Lɵg(wn)࣬ҲSضȵ߶L (3)ββ’ Lɵķ(wn)ۼھ֦硣 Mg2SiǮ̎β’’ɢB(ti)ĕrβ׃β’’^̾Ǐ^̣֮tܛ^
212Mg2Six 6063XϽğ̎폊ЧSMg2SiӶӴMg2Si071%103%(ni)r俹SMg2SiӽƾԵ׃οҲߣӹ׃yMg2SiС072%rڔDϵ(sh)ƫС(Сڻ30)Ʒֵ_˜ҪΣUMg2Si^0.9%rϽнڅ GB/T52371—2000˜Ҫ6063XϽT5B(ti)Ͳĵσb≥160MPaT6B(ti)Ͳσb≥205MPa`CԓϽĿ^߿_260MPaa(chn)Ӱغܴܶ࣬__@ôCϵĿ]ͲļҪȸܴ_a(chn)ƷϘ˜ҪҪʹϽڔDa(chn)Чʡ҂O(sh)ӋϽȕrT5B(ti)؛Ͳȡ200MPaO(sh)ӋֵĈD1֪200MPaҕrMg2Sis08%T6B(ti)Ͳģ҂?ni)O(sh)Ӌֵ230 MPa˕rMg2Siߵ095%
213MgĴ_ Mg2Siһ(jng)_MgɰʽӋ㣺 Mg%=1.73×Mg2Si%/2.73
214SiĴ_ Siĺ횝MMgγMg2SiҪMg2SiMgSiԭ|(zh)֮ȞMg/Si=173 ԻSiSi=Mg/173 nj`CSiMϕra(chn)ĺϽ俹ƫͶϸ@ȻǺϽMg2Si(sh)ԭǺϽеFeMns|(zh)ԪؓZSiFecSiγALFeSiϽбҪ^ʣSiaSiēpʧϽ^ʣSi߀߿aϽȵMg2Si^ʣSiؕI֮ϽFeƫߕrSi߀ܽFeIJӰSiͺϽԺgԣSi^(yng)кĿҏS(j)H(jng)J^ʣSix009% 013%(ni)DZ^õġ ϽSi(yng)ǣSi%=(Si+Si^)%
Ʒ
31MgĿƷ Mgȼ۟rПpڴ_MgĿƷrҪ]p`ܷŵ̫Ͻʧ҂(j)(jng)ͱS۟ͻˮƽMgIJӷ004%֮(ni)T5Ͳȡ047%050%T6Ͳȡ057%060%
32SiĿƷ Mgķ_SiĿƷMg/Siȁ_ԓSSi^009%013%Mg/Si(yng)118132֮g
336063XϽT5T6B(ti)ͲĻW(xu)ɷֵxҪ׃Ͻɷ֕r댢Mg2Siӵ095%Աa(chn)T6Ͳĕr^Siޅ^(q)gMg06%ҵλü˕rSis046%Si^011%Mg/Si1
34Y(ji)Z (j)ҏSĽ(jng)6063XϽͲMg2Si075%080%(ni)ȫ܉MW(xu)ܵҪDϵ(sh)(ڻ30)r£ͲĵĿȶ̎200240 MPa(ni)@ӿƺϽ𣬲HԺڔDgԸߺͱ̎ܺҿɹ(ji)sϽԪ߀(yng)eע⌦s|(zh)FeMЇơFe^ʹDӴDı|(zh)׃^ɫӴɫҰoF(xin)e߀ͺϽԺgԡ`CFe015%025%(ni)DZ^
2A12-T4XopܺڏS 5083ϽX܃r W(xu)ɷ
Si0.20-0.6
FFe: 0.35
~Cu0.10
iMn0.10
VMg0.45-0.9
tCr0.10
\Zn0.10
Ti0.10
Ԯa(chn)1%~5%2A12-T4XopܺڏS 5083ϽX܃r
XAl
W(xu)ܣ2A12-T4XopܺڏS 5083ϽX܃r VX6061c VX6061-T6516ϵϽҪϽ
σb (MPa)≥250
L(yng) σp0.2 (MPa)≥110
L δ5 (%)≥7
ע ҜؿvW(xu)
ԇӳߴ磺ֱ≤12.5
˾һ؞ԣ (w)ǰ|(zh)ǰr͑ϡ(w)ܵ͑ԭt\(chung)hּ gӭϿ͑ǰ텢^ǢՄ҂ԸcVϿ͑yֹMͬ(chung)
ף
һXϽB
|(zh)
2A12-T4XopܺڏS 5083ϽX܃r XϽܶȵȱ^ߣӽ^(yu)ԺɼӹɸNͲģЃ(yu)Č(do)(do)ԺͿgԣI(y)ϏVʹʹHһЩXϽԲß̎@õęCеܣܺͿgӲXϽAI—Cu—Mgϵһ㺬Mnɟ̎폊cӲȴ^ӲXAlһCu—Mg—Znϵɟ̎폊Ҝ^ߵXϽ𣮵gԲߜܛ졣XϽҪAl—Zn—Mg—SiϵϽmȻԪطN࣬ǺЃ(yu)ğԣmַQXϽ[2]
|(zh)Y(ji)(gu)
Xܶρ=2.7g/cm3sF 1/3cͣ660棩XY(ji)(gu)ʾкܸߵԣδ:32~40%ψ:70~90%ڼӹƳɸNͲġgܺǼXďȺܵ˻B(ti) σb ֵs8kgf/mm2ʲY(ji)(gu)ͨ^Lڵa(chn)`ͿƌW(xu)˂uԼϽԪؼ\ß̎ȷ폊X@͵õһϵеXϽ һԪγɵĺϽڱּX|(zh)pȃ(yu)cͬr߀ܾ^ߵďȣσb ֵքe_ 2460kgf/mm2@ʹ“ȏ”cصıֵ σb/ρ^ܶϽ䓣ɞĽY(ji)(gu)VڙCе\ݔCеCеչI(y)ȷwCęCƤCȳXϽԜppءXϽ䓰ϵĺY(ji)(gu)ɜpp50%
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ނXϽģ呹ˇеҪһh(hun)XϽڸߜ^ܛճԴԲճģa(chn)Nȱc(ۯBëѼy)Mһǰ횴ĥނȱcɃtںm(x)ȱcMһU呼U
ނõĹL(fng)ɰ݆CL(fng)С㊵늄С㊵PȡނǰȽ(jng)gȱcλނ̎ҪA^䌒ȑ(yng)ߌӶȵ510gԺ2A12-T4XopܺڏS 5083ϽX܃r
ӹ2A12-T4XopܺڏS 5083ϽX܃rʹԓϽğ̎Чhh^X-\ԪϽ
XϽӹa(chn)Ʒ֞PLFӲ|(zh)LY죨LDӲLCLB⣨LTFLQXϽϵĠB(ti)˻MFӲY܈RN
Tc
T캆QTһN۽Y(ji)ϽҺ뉺҃(ni)ԸٳģߵǻʹϽҺډ̶γTT췽T^(q)eT췽ҪcǸ߉١
1Һډǻڸߵĉ½Y(ji)Ҋĉ15—100MPa
2ҺԸٳǻͨ10—50/е߀ɳ^80/ͨ^(ni)ڌ(do)ǻľٶ—(ni)ٶȣ˽Һij͕rg^s0.01—0.2루ҕTĴСͬ(ni)MǻTCTϽcTģljTa(chn)Ҫȱһ^Tˇnj@Ҫr(nng)I(y)a(chn)wϵؼԾC\ʹܷ(wn)й(ji)غЧʸߵa(chn)^(ni)|(zh)õߴψDӻf(xi)hҎ(gu)ҪĺϸT(yu)T
T
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ӰԵغܶҪdzɷ֡ضԼϽҺwдڽٻPȾĹwڵĸ؞靲עضȼעQע^ĸߵ
Ha(chn)ںϽѴ_r£ˏ۟ˇc߀횸TˇԣɰģԡģŚ⼰ضȣڲӰT|(zh)ǰߝעضCϽ
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XXϽ(jng)ӹһΠIJϽy(tng)QXġܲͲĵ2A12-T4XopܺڏS 5083ϽX܃r
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2A12-T4XopܺڏS 5083ϽX܃r(jng)^(jng)^ӹӲ_(wn)Įa(chn)Ʒ XϽ,ȸߺ|(zh)pҪӹˇu^廡TIGwoMIGĦFSW
Ҏ(gu)MĔDưͺܲ2A12-T4XopܺڏS 5083ϽX܃r
2A12-T4XopܺڏS 5083ϽX܃rM˹rЧĮa(chn)Ʒ
؟(z)չʾϢI(y)ṩ(ni)ݵ挍ʴ_ԺͺϷɰl(f)I(y)ؓ؟(z)XW(wng)˲Г(dn)καC؟(z)Ρ鱣҂hxXW(wng) XI(y)ͨTѣՈÑӏϢ挍Լl(f)cY|(zh)eҪ
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