高强铝合金的热处理技术

:1005-2046(2005)02-0097-06,(43,710025):,,(RRA)22(ORR):;;;:TG16613:A:2004209202:(1978),,,,,,,,,1,,,,,,,,,,,,,,;,,,,,;,,,,[1]2211,,,;,,,1[2],,,,,262Vol126No1220056SHANGHAINONFERROUSMETALSJun.2005©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(a)(b)1(a);(b),[2],,,,[3]212,,,,,232(a)(b)(c)(d)3Al2Zn2Mg2Cu()(a)(c)4853h;(b)(d)4853h+4655h3,485,;465,,[4],,,,,,[5],,,,,,,2134,B95,,47010min,47010min8926©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,4214,,,,,3311Tc(GP),,5,()(),,,5(a)TATc;(b)TATc,Tb,GP,GP,,312,6(),GPGP,,,GPGP,,,,,,,PFZ,,,,,,,992:©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.6(a);(b),,015%T73T76T73T76T6,15%[6,7]T6,T73T76,AlcoaT736[8],,,,,,(BritishAerospacePublicLimitedCompany),292MPa:165130/15min24h;13090P1h72h6(a),T1T2Tc,T1,T2,6(b),T2Tc,,Tc,,,KIcKIscc31377(a);(b)7(a),,,T1,Tc,7(b)RRA,00126©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,FeSi,T77T65125%,T61[9]RRA:;T6,3nm4nm,;T6,,,,T73,,;T6,,RRA,(T6),,[1014]RRA,,,,,,,ORR22,RRAORR,,,,,,FeSiZr,[15]4(),,,[16],,,,,,,,5(ThermomechanicalTreatment),,:Al2Cu2Mg,AI2Zn2Mg2Cu,,,,Al2CuAl2Mg2Si,Al2Zn2Mg2CuITMT,,,ITMT7FTMT,:(1),;(2),;(3),1012:©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,;(5),,FTMT7,7FTMTFTMT7,,FTMT,6,,RRAORR,,,,,,:[1].[J].,2001,21(2):1417.[2],,.7055[J].,2000,31(6):528531.[3],,.AlZnMgCu[J].,2001,37(1):2933.[4].AlZnMgCu[J].,2003,28(7):1316.[5].7055[J].,2003,34(2):114118.[6],,,.[J].,1994,14(1):4951.[7].[M].:,1989.[8].7[J].,1986,(12):2123.[9],,,.[J].,2002,(4):1622.[10],axapo.[J].,,1997,(7):5458.[11]MatthewBHall,JohnWMartin.[J].ZMatallked,1994,(2):134139.[12],.Al2Zn2Mg2CuRRA[J].,1996,24(2):3132.[13],,.7050RRA[J].,1997,25(9):3437.[14],,,.(RRA)7050[J].,2001,(1):3135.[15].227055[J].,2004,25(3):5761.[16].[J].,1998,(5):3638.TechnologyforHeatTreatmentofHighStrengthAluminumAlloysSHANGYong,ZHANGLi2wu(No143LabofNo14ResearchInstitute,SpaceScience&TechnologyGroup,Xipan710025,China)Abstract:Thisarticleintroducesthepresentinvestigationstatusofheattreatmentusedforultrahighstrengthaluminumalloys.Homogenizationandcryogenictreatmentarecategorizedasheattreatment.Solidsolutionatelevatedtemperatures,hightemperaturepre2precipitation,dualquenching,RRAandORRarepresentedindetail.Keywords:ultrahighstrengthaluminumalloys;heattreatment;solidsolution;ageing20126©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.