电焊机2017，Vol.47Issue(10)：109-111,3.DOI:10.7512/j.issn.1001-2303.2017.10.23
5052铝合金FSW接头组织和力学性能
Microstructure and mechanical properties of 5052 aluminum alloy FSW joint
摘要
Abstract
8 mm thick 5052-O aluminum alloy was welded by friction stir welding (FSW),and the microstructure of the welded joint was observed,meanwhile,the mechanical properties were tested.The results show that the microstructure of the welded joint is leftright asymmetry.The boundary of advancing side and base metal is obvious,but the boundary of retreating side and base metal is fuzzy.The average tensile strength of the welded joint can reach 193.5 MPa,the joint coefficient of strength can reach 99％ of base metal,and the elongation can reach 84％ of base metal.No cracking is found in the welded joint at the 180° face bending test and 180° back bending test.The microhardness of weld nugget zone is 72 HV,which is slightly higher than base metal.The minimum of the microhardness is in the advancing side fusion zone of transition.关键词
搅拌摩擦焊/5052-O铝合金/显微组织/力学性能Key words
FSW/5052-O aluminum alloy/microstructure/mechanical properties分类
矿业与冶金引用本文复制引用
汤化伟,崔凡,黄征,李丹,徐勇..5052铝合金FSW接头组织和力学性能[J].电焊机,2017,47(10):109-111,3.基金项目
上海市优秀技术带头人计划项目(14XD1421600) （14XD1421600）
