Zr含量对铸造AlSi7Mg0.4合金力学性能的影响

张云翔, 赵海东, 朱霖, 李昌海, 武汉琦

Effect of Zr Contents on Mechanical Properties of Cast AlSi7Mg0.4 Alloys

ZHANG Yunxiang, ZHAO Haidong, ZHU Lin, LI Changhai, WU Hanqi

表4 T6热处理态合金中金属化合物的EDS结果和面积分数

Table 4 EDS analyses of the intermetallic phases measured in T6 treated alloys (atomic fraction, %) and area fraction

Alloy Phase Al Si Mg Fe Zr Ti Reference Area fraction 1 β-Fe 77.06 12.82 - 10.12 - - [22] - β-Fe-2 82.58 11.59 0.38 5.45 - - [22] - 2 β-Fe-2 86.44 9.55 - 4.01 - - [22] - π-Fe 85.63 12.36 1.20 0.81 - - [22] - (Al, Si)3(Zr, Ti) 90.29 5.47 - - 2.38 1.86 [10] <0.01% 3 β-Fe-2 85.52 8.43 0.19 5.86 - - [22] - (Al, Si)3(Zr, Ti) 69.52 20.27 - - 7.55 2.66 [10] 0.07% 4 β-Fe-2 94.03 3.94 - 2.03 - - [22] - (Al, Si)3(Zr, Ti) 61.64 25.42 - - 7.90 5.04 [10] 0.21%