of;
Materials;
Science;
and;
Engineering,;
Harbin;
Institute;
of;
Technology,;
Harbin;
150001,;
China;
Key;
Laboratory;
for;
Fabrication;
and;
Processing;
of;
Nonferrous;
Metals,;
General;
Research;
Institute;
for;
Nonferrous;
Metals,;
Beijing;
100088,;
China;
2A50铝合金; 半固态加工; 拉伸性能; 变形; 温度范围; 最大拉应力; 应力作用; 微观结构;