材料工程Issue(9)：20-24,5.
60mm厚度6061-T6铝合金板搅拌摩擦焊接接头微观组织与力学性能
Microstructure and Mechanical Property Analysis on Double-sided Friction Stir Welding Joints of 60mm 6061-T6 Aluminum Alloy Plate
摘要
Abstract
Double-sided friction stir welding was applied to connection of 6061-T6 aluminum alloy plates, the microstructure and mechanical properties of the joints were investigated. The results show that the microstructure undergoes different changes in the through-thickness direction, the tensile strength of the joint reaches 218MPa, 70% that of the parent material. The re-solution and over-aging of the strengthening phases caused by welding thermal cycle have a great effect on the strength degradation, and the thermal mechanical affected zone of the advancing side is the welding weakness.关键词
双面搅拌摩擦焊/6061-T6铝合金/微观组织/力学性能Key words
double-sided friction stir welding/ 6061-T6 aluminum alloy/ microstructure/ mechanical property分类
矿业与冶金引用本文复制引用
贺地求,罗维,邬红光..60mm厚度6061-T6铝合金板搅拌摩擦焊接接头微观组织与力学性能[J].材料工程,2011,(9):20-24,5.基金项目
国家自然科学基金资助项目(50675228) （50675228）
