Microstructure and Mechanical Properties of the Cold-Rolled Mg-14Li-1Zn Alloy after Hot Rolling
Microstructure and Mechanical Properties of the Cold-Rolled Mg-14Li-1Zn Alloy after Hot Rolling
复制标题
DOI：
10.1155/2019/4813798
复制
发表时间：
2019-11
影响因子：
--
通讯作者：
Qiang Wu;Kunning Fu;R. Wu;Jinghuai Zhang;L. Hou;Milin Zhang
中科院分区：
文献类型：
--
作者：
Qiang Wu;Kunning Fu;R. Wu;Jinghuai Zhang;L. Hou;Milin Zhang
对铸态Mg-14Li-1Zn合金在不同温度下以50%的变形量进行热轧，然后以80%的变形量进行冷轧。研究了热轧温度对最终试件组织和力学性能的影响。结果表明，轧制温度越高，组织越均匀，有利于后续的冷轧。当热轧温度为30 0℃时，最终试件的抗拉强度和硬度最高，分别为2 38 Mpa和6 7.7HV。当热轧温度为200℃时，最终试件的延伸率最高，为24.6%。
The as-cast Mg-14Li-1Zn alloy was hot rolled at different temperatures with the reduction of 50%, followed by cold rolling with the reduction of 80%. The effects of the hot rolling temperature on the microstructure and mechanical properties of the final specimens were investigated. The results show that the higher rolling temperature brings about a more homogeneous microstructure, which is favorable for the subsequent cold rolling. When the hot rolling temperature is 300°C, the final specimen possesses the highest tensile strength and hardness of 238 MPa and 67.7 HV, respectively. When the hot rolling temperature is 200°C, the final specimen possesses the highest elongation of 24.6%.