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金属学报(英文版) 2000
DYNAMIC RECOVERY AND DYNAMIC RECRYSTALLIZATION OF 7005 ALUMINIUM ALLOY DURING HOT COMPRESSIONKeywords: compression,flow stress,dynamic recovery,dynamic recrystallization,restoration mechanism Abstract: 1.IntrottionItiswellknownthatworkhardeninganddynathecsofteningbehavescontradictorilydur-lughotworkingofmaterials.DislocationgenerationandintersectionsOfdislocationsduringI)lasticdeformationleadstoworkhardening,WhilesofteningismainlysuPPliedbydynamoicrecoveryand/ordynamicrecrystallization,whichresultsfromcoalescence,annihilationandreconstmctionofdislocationsbycross--slipandclilnhwiththeaidofaPPliedstressandthermal..ti.ati..Lll2}.However,completeannihilationofdislocationsreqUirescross--slipa…
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