焊前热处理状态对SiCp/Al-Cu-Mg复合材料搅拌摩擦焊接头微观组织和力学性能的影响*

王东, 王全兆, 肖伯律, 倪丁瑞, 马宗义

EFFECT OF HEAT TREATMENT BEFORE WELDING ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF FRICTION STIR WELDED SiCp/Al-Cu-Mg COMPOSITE JOINTS

WANG Dong, WANG Quanzhao, XIAO Bol, NI Dingrui, MA Zongyi

表2 固溶态及自然时效态15%SiCp/2009Al 的FSW接头及母材的拉伸性能

Table 2 Tensile properties of FSW 15%SiCp/2009Al joints and base material

Sample YS / MPa UTS / MPa EL / % UTSJoint/UTSBM Fracture location BM 332 538 12.6 -　 - Sol-FSW 297 445 5.7 0.83 LHZ I T4-FSW 300 444 4.1 0.83 LHZ I T4-FSW-T4 323 516 8.6 0.96 LHZ I