7075-T6XϺF(xin)؛ XC(j)е
ŽQ(mo)˾һҼa(chn)c͵ľCԌ(sh)I(y)˾н(jng)(yn)a(chn)(yng)XXXXܡyX壨СlXָX壩кXXϽX塢XXXXXXopXܡֱXɫXNXӹXܺXۏXܼӹXܴXۏXܺXľӹXϽӹXܾӹXXӹXƷӹȵ
7075-T6XϺF(xin)؛ XC(j)еVʳƷyƷˎƷ㟟I(y)a(chn)ƷȰb
ɝM|(zh)1060/110020142A12LY12,20172024300350525754ߵ05ߵ066201610660116351600560616262606364636082700370057075
˾cȫضҽ(jng)NԼI(y)Lڷ(wn)ĺP(gun)ϵ
7075-T6XϺF(xin)؛ XC(j)е VX6061c(din) VX6061-T6516ϵϽҪϽ
6063XϽĻW(xu)ɷֳɞa(chn)(yu)XϽͲĵ^Ҫһh(hun)
ܵӰ
6063XϽAL-Mg-Siϵоеȏ(qing)ȵĿɟ̎폊(qing)ϽMgSiҪϽԪ(yu)xW(xu)ɷֵҪǴ_MgSiİٷֺ(|(zh)?jn)?sh)ͬ)
Al-MgϵϽ,ʹ÷V,eǽI(y)x_˺Ͻ7075-T6XϺF(xin)؛ XC(j)е
11MgúӰ MgSiMɏ(qing)Mg2SiMgĺMg2SiĔ(sh)̎폊(qing)ЧͲĵĿ(qing)Ⱦ׃οҲS֮ӴϽ½ӹ׃g׃
12SiúӰ SiĔ(sh)(yng)ʹϽеMgMg2SiʽڣԴ_Mgõõֵİl(f)]SSiӣϽľ׃(x)ԼӴT׃̎폊(qing)ЧͲĵĿ(qing)߶Խg׃
xܟ̎폊(qing)7075-T6XϺF(xin)؛ XC(j)е
21Mg2SiĴ_
211Mg2SiںϽе Mg2SiںϽSضȵ׃ܽԲͬΑB(ti)ںϽУ (1)ɢβ’’wMg2Siɢ|(zh)c(din)һN(wn)࣬Sضȵ߶L (2)^β’ β’’Lɵg(wn)࣬ҲSضȵ߶L (3)ββ’ Lɵķ(wn)ۼھ֦硣 (qing)Mg2SiǮ(dng)̎β’’ɢB(ti)ĕrβ׃β’’^̾Ǐ(qing)^֮tܛ^
212Mg2Six 6063XϽğ̎폊(qing)ЧSMg2SiӶӴ(dng)Mg2Si071%103%(ni)r俹(qing)SMg2SiӽƾԵ׃οҲӹ׃yMg2SiС072%rڔDϵ(sh)ƫС(Сڻ30)Ʒ(qing)ֵ_(d)(bio)(zhn)ҪΣU(dng)Mg2Si^0.9%rϽнڅ GB/T52371—2000(bio)(zhn)Ҫ6063XϽT5B(ti)Ͳĵσb≥160MPaT6B(ti)Ͳσb≥205MPa(sh)`CԓϽĿ(qing)^߿_(d)260MPaa(chn)Ӱغܴܶ__(d)@ôCϵĿ]ͲļҪ(qing)ȸܴ_a(chn)ƷϘ(bio)(zhn)ҪҪʹϽڔDa(chn)Чʡ҂O(sh)Ӌ(j)Ͻ(qing)ȕrT5B(ti)؛Ͳȡ200MPaO(sh)Ӌ(j)ֵĈD1֪(qing)
200MPaҕrMg2Sis08%T6B(ti)Ͳ҂?ni)?qing)O(sh)Ӌ(j)ֵ230 MPa˕rMg2Siߵ095%
213MgĴ_ Mg2Siһ(jng)_MgɰʽӋ(j)㣺 Mg%=1.73×Mg2Si%/2.73
214SiĴ_ Siĺ횝MMgγMg2SiҪMg2SiMgSiԭ|(zh)֮ȞMg/Si=173 ԻSiSi=Mg/173 nj(sh)`CSiM(jn)ϕra(chn)ĺϽ俹(qing)ƫͶϸ@ȻǺϽMg2Si(sh)ԭǺϽеFeMns|(zh)Ԫ?f)ZSiFecSiγALFeSiԣϽбҪ^ʣSia(b)SiēpʧϽ^ʣSi߀߿(qing)a(b)Ͻ(qing)ȵMg2Si^ʣSiؕI(xin)֮(dng)ϽFeƫߕrSi߀ܽFeIJӰSiͺϽԺgSi^(yng)кĿơҏS(j)(sh)H(jng)(yn)J(rn)^ʣSix009% 013%(ni)DZ^õ ϽSi(yng)ǣSi%=(Si+Si^)%
Ʒ
31MgĿƷ Mgȼ۟rПpڴ_MgĿƷrҪ]p`ܷŵ̫Ͻʧ҂(j)(jng)(yn)ͱS۟ͻ(yn)ˮƽMgIJӷ004%֮(ni)T5Ͳȡ047%050%T6Ͳȡ057%060%
32SiĿƷ (dng)Mgķ_SiĿƷMg/Siȁ_?yn)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)(yn)6063XϽͲMg2Si075%080%(ni)ȫ܉MW(xu)ܵҪDϵ(sh)(ڻ30)rͲĵĿ(qing)ȶ̎200240 MPa(ni)@ӿƺϽHԺڔDgԸߺͱ̎ܺҿɹ(ji)sϽԪ߀(yng)eע⌦s|(zh)FeM(jn)Ї(yn)ơFe^ʹDӴDı|(zh)׃^ɫӴɫҰoF(xin)e߀ͺϽԺgԡ(sh)`CFe015%025%(ni)DZ^
7075-T6XϺF(xin)؛ XC(j)е W(xu)ɷ
Si0.20-0.6
FFe: 0.35
~Cu0.10
iMn0.10
VMg0.45-0.9
tCr0.10
\Zn0.10
Ti0.10
õԼ(qing)7075-T6XϺF(xin)؛ XC(j)е
XAl
W(xu)ܣ7075-T6XϺF(xin)؛ XC(j)е3
(qing) 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\(sh)(chung)h(yun)ּ gӭϿ͑ǰ텢^ǢՄ҂ԸcVϿ͑yֹM(jn)ͬ(chung)
ף
һXϽB
|(zh)
7075-T6XϺF(xin)؛ XC(j)е XϽܶȵ(qing)ȱ^ߣӽ^(yu)ԺɼӹɸNͲЃ(yu)Č(do)ԡ(do)ԺͿgI(y)ϏVʹʹHһЩXϽԲß̎@õęC(j)еܺͿgӲXϽAI—Cu—Mgϵһ㺬Mnɟ̎폊(qing)c(din)Ӳȴ^ӲXAlһCu—Mg—Znϵɟ̎폊(qing)Ҝ(qing)^ߵXϽ𣮵gԲߜܛ졣XϽҪAl—Zn—Mg—SiϵϽmȻԪطNǺ٣Ѓ(yu)ğm죬ַQXϽ[2]
|(zh)Y(ji)(gu)
XܶСρ=2.7g/cm3sF 1/3c(din)ͣ660棩XY(ji)(gu)ʾкܸߵԣδ:32~40%ψ:70~90%ڼӹƳɸNͲģgܺǼXď(qing)Ⱥܵͣ˻B(ti) σb ֵs8kgf/mm2ʲY(ji)(gu)ͨ^Lڵa(chn)(sh)`ͿƌW(xu)(sh)(yn)˂uԼϽԪؼ\(yn)ß̎ȷ폊(qing)X@͵õһϵеXϽ һԪγɵĺϽڱּX|(zh)pȃ(yu)c(din)ͬr߀ܾ^ߵď(qing)σb ֵքe_(d) 2460kgf/mm2@ʹ“ȏ(qing)”(qing)cصıֵ σb/ρ^ܶϽɞĽY(ji)(gu)VڙC(j)е\(yn)ݔC(j)еC(j)еչI(y)ȷ棬wC(j)ęC(j)ƤC(j)ȳXϽԜppXϽ䓰ϵĺY(ji)(gu)ɜpp50%ϡ
ނ
ނXϽģ呹ˇеҪһh(hun)XϽڸߜ^ܛճԴԲճģa(chn)Nȱc(din)(ۯBëѼy)M(jn)һǰ횴ĥނȱc(din)Ƀtںm(x)ȱc(din)M(jn)һU(ku)呼U
ނõĹL(fng)ɰ݆C(j)L(fng)С㊵늄С㊵PނǰȽ(jng)gȱc(din)λނ̎ҪA^䌒ȑ(yng)ߌӶȵ510
NTĻXͲXĻͰyɫͿX7075-T6XϺF(xin)؛ XC(j)е
ӹ7075-T6XϺF(xin)؛ XC(j)е ĸHһλ(sh)֣ ǰλ(sh)ֱʾľǼӹӲ̎ķ
XϽӹa(chn)Ʒ֞PLFӲ|(zh)LY죨LDӲLCLB⣨LTFLQXϽϵĠB(ti)˻MFӲY܈RN
Tc(din)
T캆QTһN۽Y(ji)ϽҺ뉺҃(ni)ԸٳģߵǻʹϽҺډ̶γTT췽T^(q)eT췽Ҫc(din)Ǹ߉
1Һډǻڸߵĉ½Y(ji)Ҋĉ15—100MPa
2ҺԸٳǻͨ10—50/е߀ɳ^80/ͨ^(ni)ڌ(do)ǻľٶ—(ni)ٶȣ˽Һij͕rg^s0.01—0.2루ҕTĴСͬ(ni)MǻTC(j)TϽcTģljTa(chn)Ҫȱһ^Tˇnj@Ҫr(nng)I(y)a(chn)wϵؼԾC\(yn)ʹܷ(wn)й(ji)غЧʸߵa(chn)^(ni)|(zh)õߴψDӻf(xi)hҎ(gu)ҪĺϸT(yu)T
T
ָϽҺwT͵ԵĴСQϽܷT(f)sTXϽйϽ^
ӰԵغܶҪdzɷ֡ضԼϽҺwдڽٻPȾĹwڵĸ؞靲עضȼעQע^ĸߵ
(sh)Ha(chn)ںϽѴ_r£ˏ(qing)۟ˇc߀횸TˇԣɰģԡģŚ⼰ضȣڲӰT|(zh)ǰߝעضȣCϽ
X
XXϽ(jng)ӹһΠIJϽy(tng)QXġġܲͲĵȡ7075-T6XϺF(xin)؛ XC(j)е
ӷ
7075-T6XϺF(xin)؛ XC(j)еܮa(chn)ƷV^b܇܇ߘcSbNϴۡL(fng)~ü XϽ,(qing)ȸߺ|(zh)pҪӹˇu^廡TIGwo(h)MIGĦFSW
ĥ(qing)7075-T6XϺF(xin)؛ XC(j)е
7075-T6XϺF(xin)؛ XC(j)еӲFк,ܛF^
؟(z)չʾϢI(y)ṩ(ni)ݵ挍(sh)(zhn)_ԺͺϷɰl(f)I(y)ؓ(f)؟(z)XW(wng)˲Г(dn)καC؟(z)Ρ鱣҂hxXW(wng) XI(y)ͨTѣՈÑӏ(qing)Ϣ挍(sh)Լl(f)cY|(zh)eҪ
L(fng)Uʾ(chung)I(y)L(fng)UͶY֔(jn)p_(chung)\ƽ_S(qun)e0571-89937588