7075-T6XϺF(xin)؛ XCе
ŽQ(mo)˾һҼa(chn)c͵ľCԌI(y)˾н(jng)a(chn)XXܣXXyX壨СlX塢ָX壩кXXϽX塢XXXXXXopXֱXɫXNXӹXܺXۏXܼӹXܴXۏXܺXľӹXϽӹXܾӹXXӹXƷӹȵ
7075-T6XϺF(xin)؛ XCеVʳƷyƷˎƷ㟟I(y)a(chn)ƷȰb
ɝM|1060/110020142A12LY12,20172024300350525754ߵ05ߵ066201610660116351600560616262606364636082700370057075
˾cȫضҽ(jng)NԼI(y)Lڷ(wn)ĺPϵ
7075-T6XϺF(xin)؛ XCе VX6061c VX6061-T6516ϵϽҪϽ
6063XϽĻWɷֳɞa(chn)(yu)XϽͲĵ^Ҫһh(hun)
ܵӰ
6063XϽAL-Mg-SiϵоеȏȵĿɟ̎폊ϽMgSiҪϽԪأ(yu)xWɷֵҪǴ_MgSiİٷֺ(|֔(sh)ͬ)
Al-MgϵϽ,ʹ÷V,eǽI(y)x_˺Ͻ7075-T6XϺF(xin)؛ XCе
11MgúӰ MgSiMɏMg2SiMgĺMg2SiĔ(sh)̎폊ЧͲĵĿȾ׃οҲS֮ӴϽ½ӹ׃g׃ġ
12SiúӰ SiĔ(sh)ʹϽеMgMg2SiʽԴ_Mgõõֵİl(f)]SSiϽľ׃ԼӴT׃ã̎폊ЧͲĵĿ߶Խͣg׃
xܟ̎폊7075-T6XϺF(xin)؛ XCе
21Mg2SiĴ_
211Mg2SiںϽе Mg2SiںϽSضȵ׃ܽԲͬΑB(ti)ںϽУ (1)ɢβ’’wMg2Siɢ|cһN(wn)Sضȵ߶L (2)^β’ β’’Lɵg(wn)ҲSضȵ߶L (3)ββ’ Lɵķ(wn)࣬ۼھ֦ Mg2SiǮ̎β’’ɢB(ti)ĕrβ׃β’’^̾Ǐ^֮tܛ^̡
212Mg2Six 6063XϽğ̎폊ЧSMg2SiӶӴMg2Si071%103%(ni)r俹SMg2SiӽƾԵ׃οҲӹ׃yMg2SiС072%rڔDϵ(sh)ƫС(Сڻ30)Ʒֵ_˜ҪΣUMg2Si^0.9%rϽнڅ GB/T52371—2000˜Ҫ6063XϽT5B(ti)Ͳĵσb≥160MPaT6B(ti)Ͳσb≥205MPa`CԓϽĿ^߿_260MPaa(chn)Ӱغܴܶ__@ôߡCϵĿ]ͲļҪȸܴ_a(chn)ƷϘ˜ҪҪʹϽڔDa(chn)Ч҂OӋϽȕrT5B(ti)؛Ͳȡ200MPaOӋֵĈD1֪200MPaҕrMg2Sis08%T6B(ti)Ͳģ҂?ni)OӋֵ230 MPa˕rMg2Siߵ095%
213MgĴ_ Mg2Siһ(jng)_MgɰʽӋ㣺 Mg%=1.73×Mg2Si%/2.73
214SiĴ_ Siĺ횝MMgγMg2SiҪMg2SiMgSiԭ|֮ȞMg/Si=173 ԻSiSi=Mg/173 nj`CSiMϕra(chn)ĺϽ俹ƫͶϸ@ȻǺϽMg2Si(sh)ԭǺϽеFeMns|ԪؓZSiFecSiγALFeSiϽбҪ^ʣSiaSiēpʧϽ^ʣSi߀߿aáϽȵMg2Si^ʣSiؕI֮ϽFeƫߕrSi߀ܽFeIJӰ푡SiͺϽԺgSi^кĿơҏS(j)H(jng)J^ʣSix009% 013%(ni)DZ^õ ϽSiǣSi%=(Si+Si^)%
Ʒ
31MgĿƷ Mgȼ۟rПpڴ_MgĿƷrҪ]p`ܷŵ̫Ͻʧ҂(j)(jng)ͱSϡ۟ͻˮƽMgIJӷ004%֮(ni)T5Ͳȡ047%050%T6Ͳȡ057%060%
32SiĿƷ Mgķ_SiĿƷMg/Siȁ_ԓSSi^009%013%Mg/Si118132֮g
336063XϽT5T6B(ti)ͲĻWɷֵxҪ׃Ͻɷ֕r댢Mg2Siӵ095%Աa(chn)T6Ͳĕr^Siޅ^(q)gMg06%ҵλü˕rSis046%Si^011%Mg/Si1
34YZ (j)ҏSĽ(jng)6063XϽͲMg2Si075%080%(ni)ȫ܉MWܵҪDϵ(sh)(ڻ30)r£ͲĵĿȶ̎200240 MPa(ni)@ӿƺϽ𣬲HԺڔDgԸߺͱ̎ܺãҿɹ(ji)sϽԪ߀eע⌦s|FeMЇFe^ߣʹDӴDı|׃^ɫӴɫҰoF(xin)e߀ͺϽԺg`CFe015%025%(ni)DZ^
7075-T6XϺF(xin)؛ XCе Wɷ
Si0.20-0.6
FFe: 0.35
~Cu0.10
iMn0.10
VMg0.45-0.9
tCr0.10
\Zn0.10
Ti0.10
õԼ7075-T6XϺF(xin)؛ XCе
XAl
Wܣ7075-T6XϺF(xin)؛ XCе3
σb (MPa)≥250
L σp0.2 (MPa)≥110
L δ5 (%)≥7
ע ҜؿvW
ԇӳߴ磺ֱ≤12.5
˾һ؞ԣ տǰ|ǰr͑ܵ͑ԭt\(chung)hּ gӭϿ͑ǰ텢^ǢՄ҂ԸcVϿ͑yֹMͬ(chung)
ף
һXϽB
|
7075-T6XϺF(xin)؛ XCе XϽܶȵȱ^ӽ^(yu)ԺɼӹɸNͲģЃ(yu)ČԺͿgI(y)ϏVʹʹH䓡һЩXϽԲß̎@õęCеܺͿgܡӲXϽAI—Cu—Mgϵһ㺬Mnɟ̎폊cӲȴ^ӲXAlһCu—Mg—Znϵɟ̎폊Ҝ^ߵXϽ𣮵gԲߜܛXϽҪAl—Zn—Mg—SiϵϽmȻԪطNǺЃ(yu)ğmַQXϽ[2]
|Y
XܶСρ=2.7g/cm3sF 1/3cͣ660棩XYʾкܸߵԣδ:32~40%ψ:70~90%ڼӹƳɸNͲġgܺǼXďȺܵͣ˻B(ti) σb ֵs8kgf/mm2ʲYͨ^Lڵa(chn)`ͿƌW˂uԼϽԪؼ\ß̎ȷ폊X@͵õһϵеXϽ һԪγɵĺϽڱּX|pȃ(yu)cͬr߀ܾ^ߵďȣσb ֵքe_ 2460kgf/mm2@ʹ“ȏ”cصıֵ σb/ρ^ܶϽ䓣ɞĽYVڙCе졢\ݔCеCеչI(y)ȷwCęCƤCȳXϽ죬ԜppXϽ䓰ϵĺӣYɜpp50%
ނ
ނXϽģ呹ˇеҪһh(hun)XϽڸߜ^ܛճԴԲճģa(chn)Nȱc(ۯBëѼy)Mһǰ횴ĥނȱcɃtںm(x)ȱcMһU呼U
ނõĹLɰ݆CLС㊵늄С㊵PނǰȽ(jng)gȱcλނ̎ҪA^䌒ȑߌӶȵ510NTĻXͲXĻ塢ͰyɫͿX7075-T6XϺF(xin)؛ XCе
ӹ7075-T6XϺF(xin)؛ XCе ĸHһλ(sh)֣ ǰλ(sh)ֱʾľǼӹӲ̎ķ
XϽӹa(chn)Ʒ֞PLFӲ|LY죨LDӲLCLB⣨LTFLQXϽϵĠB(ti)˻MF𣩡ӲY܈RN
Tc
T캆QTһN۽YϽҺ뉺҃(ni)ԸٳģߵǻʹϽҺډ̶γTT췽T^(q)eT췽ҪcǸ߉
1Һډǻڸߵĉ½YҊĉ15—100MPa
2ҺԸٳǻͨ10—50/е߀ɳ^80/ͨ^(ni)ڌǻľٶ—(ni)ٶȣ˽Һij͕rg^s0.01—0.2루ҕTĴСͬ(ni)MǻTCTϽcTģljTa(chn)Ҫȱһɡ^Tˇnj@Ҫr(nng)I(y)a(chn)wϵؼԾC\ʹܷ(wn)й(ji)غЧʸߵa(chn)^(ni)|õߴψDӻf(xi)hҎ(gu)ҪĺϸT(yu)T
T
ָϽҺwT͵ԵĴСQϽܷTsTXϽйϽ^
ӰԵغܶҪdzɷضԼϽҺwдڽٻPȾĹwڵĸ؞靲עضȼעQע^ĸߵ
Ha(chn)ںϽѴ_rˏ۟ˇc߀횸TˇԣɰģģŚ⼰ضȣڲӰT|ǰߝעضȣCϽ
X
XXϽ(jng)ӹһΠIJϽy(tng)QXġġܲġͲĵ7075-T6XϺF(xin)؛ XCе
ӷ
7075-T6XϺF(xin)؛ XCеܮa(chn)ƷVơ^b܇܇ߘcSbNϴL~ü XϽ,ȸߺ|pҪӹˇu^廡TIGwoMIGĦFSW
ĥ7075-T6XϺF(xin)؛ XCе
7075-T6XϺF(xin)؛ XCеӲFк,ܛF^
؟չʾϢI(y)ṩ(ni)ݵ挍ʴ_ԺͺϷɰl(f)I(y)ؓ؟XW(wng)˲ГκαC؟鱣҂hxXW(wng) XI(y)ͨTѣՈÑӏϢ挍Լl(f)cY|eҪ
LUʾ(chung)I(y)LUͶY֔p_(chung)\ƽ_Se0571-89937588