您好,欢迎访问三七文档
当前位置:首页 > 机械/制造/汽车 > 机械/模具设计 > 航空高强度铝合金残余应力的抑制与消除
22320029JOURNALOFAERONAUTICALMATERIALSVol.22,No.3September2002王秋成,柯映林(,310027):,,,,:;;;:TG146.2:A:1005-5053(2002)03-0059-047075705020246061,,,,,(StressCorrosionCracking),,,,1 残余应力的产生与抑制1.1,500(),,,,,,:2002-06-06;:2002-08-09:(50175102):(1964-),,,E-mail:gcwang-hz@263.net,,1.2(1032),,,,(6071),,,,,,75,,,,,,,,17075[2,7]19%22%UCON-A19-22%AQ25130%45%CL-1,,1.3,,,17075Table1Effectof7075aluminumalloyquenchedindifferentquenchantsQuenchantsSolutiondensity/wt%Deformation/mmb/Mpa5/%20Coldwater1007.4250919.6UCON-A19221.261.3551852019.520.7AQ25119221.261.3551452120.320.7CL-130451.993.0451052019.420.510,,,,,2 残余应力的消除工艺与方法,2.1,,,MgZn2,,,(200250),10%35%,[3]2.2,,,,90%1,()1.5%3.0%[1],,2.3(ColdStabiliza-tion),(Uphill12014-T67075-T6(44.5mm)Fig.1Effectofstretchingon44.5mm2014-T6and7075-T6aluminumplatesQuench)(CyclicTreatment)-196,,,,,84%22014-T6[6],,,,,,,,,,,60222Fig.2Effectivenessofvariousuphillquenchingtreatmentinreducingresidualquenchingstressesof2014-T6aluminumplate,2.4,,,,,,(02),,50%70%;360,10%20%[8](VSR),,,,,,,,2.5,[5],,()(3),,,,,,;,3 结束语,3Fig.3Crosssectionofaforgingbeingcoldcompressedinthedieforgingtool,,;,,UCON-A,AQ251613,,,,,:[1]YOSHIHARAN,HINOY.Removaltechniqueofresidualstressin7075aluminumalloy[A].ElsevierAppliedScience.ResidualStresses:ScienceandTech,ProcofthethirdICRS[C].1992,11401145.[2]TOTTENGE.MACKENZIEDS.Aluminumquenchingtechnology:areview[J].MaterialsSci-enceForum,2000,331337:589594.[3]TANNERDA.ROBINSONJS.Residualstresspre-dictionanddeterminationin7010aluminumalloyforgings[J].Experimentalmechanics,2000,40(1):7582.[4]TANNERDA.ROBINSONJS.Coldcompressionresidualstressreductionin7010aluminumalloy[J].MaterialsScienceForum,2000,347:235240.[5]JAENSSONB,LARSSONSE.Controlanduseofresidualstressreductioninaircraftstructural;parts[J].JournalofAircraft,1988,25(1):4854.[6]DAVISJR,DAVIDNSONGM,LAMPMANSR,etal.Heattreatingofaluminumalloys,ASMHand-bookVolume4[M].1995:841879.[7],.7075[J].,1994(11):3435,42.[8].[J].,1993,(4):4850.[9],,,.[J].,2001,(1):5558.[10],,,.[J].,2002,12(1):1421.Controlandreliefofresidualstressesinhigh-strengthaluminumalloypartsforaerospaceindustryWANGQiu-cheng,KEYing-lin(CollegeofMechanicalandEnergyEngineering,ZhejiangUniversity,Hangzhou310027,China)Abstract:Residualstressesofaverysignificantlevelwereintroducedwhenaluminumalloypartswerequenchedincoldwaterfromthetemperatureofsolutiontreatment.Residualstressescausenotonlydistortionandcracking,butalsoen-hancesusceptibilitytostresscorrosioncracking(SCC)andleadtoprematurefailure.Theaimofthisresearchishowtocontrolandrelieveresidualstressesinhigh-strengthaluminumalloyparts.First,variousquenchingprocesseshavebeene-valuatedinanattempttocombinelowresidualstresseswiththerequiredlevelsofmechanicalpropertiesduringsolidsolu-tion,involvingquenchingintoboilingwater,sprayquenchingandpolymerglycolquenchants.Thesecondpartofthispa-perisfocusedonthecomparisonofdifferentstress-relievingtechniques,highlightingtheirkeyattributes,specificadvan-tagesandlimitations.Moreover,thepaperconcludesthatallstress-relievingtechniquesshouldbecarriedoutimmediatelyafterbeingquenchedinthesolutiontreatment.Keywords:aluminumalloy;residualstress;relief;reduction;solidsolution6222
本文标题:航空高强度铝合金残余应力的抑制与消除
链接地址:https://www.777doc.com/doc-6017303 .html