" 关键词:搅拌摩擦焊接;铝合金;组织演变;晶粒细化;动态再结晶 中图分类号:TG444 .77;TG456 文献标识码:B 文章编号:1001-2303(2006)04-0063-03 WANGXun-hong1,WANGKuai-she1,2,SHENYang1,XUKe-wei2,WANGHong-xia3 (1.CollegeofMetallurgyEngineering,XianUniversityofArchitectureandTechnology,Xian710055,China;2.StateKeyLaboratoryforMechanicalBehaviorofMaterials,XianJiaotongUniversity,Xian710049,China;3.ChengduAricraftIndustriesGroup,Chengdu610092,China) Abstract:Thealluiminumalloy1060wasweldedbyfrictionstirweldingandTIGwelding,whichwerecomparedtoevolutetheinfluenceofprocessonmicrostructure.TheresultshowsthatfoundrymicrostructurewasfoundintwosideTIGjointandcolumnargrainsclosetofusionobviouslyincreasedalongmastermaterialtocentrallinewhichinnerstresseneouragedthecrack.ThefinegrainandnarrowHAZwerefoundinfrictionstirweldandthedynamicrecrystalizationproducesfinegrain.Aspecialzonethermomechanicalaffectedzonewasfound. |