稀土元素La对AlMgSi合金性能和微结构的影响

郑雄, 赖玉香, 向雪梅, 陈江华

Impacts of Rare Earth Element La on Properties and Microstructure of AlMgSi Alloys

ZHENG Xiong, LAI Yuxiang, XIANG Xuemei, CHEN Jianghua

表2 4种合金AQ和PA态的拉伸性能

Table 2 Tensile properties of the four alloys under the AQ and PA conditions

Alloy YS / MPa UTS / MPa El / % Q / MPa AQ PA AQ PA AQ PA AQ PA 0La 97.2 312.2 172.4 332.0 21.6 4.7 372.6 432.8 0.2La 98.4 318.8 172.5 341.4 24.5 7.4 378.7 471.1 0.4La 111.1 337.3 203.4 355.8 26.0 9.1 415.6 499.7 0.6La 100.7 316.3 191.9 337.7 28.2 10.2 409.6 489.0