期刊论文

英文

中国有色金属学报(英文版)

1003-6326

2022

32

5

1460-1471

10.1016/S1003-6326(22)65886-2

the National Natural Science Foundation of China （Nos. U1764253, U2037601, 52001037 and 51971044）； the National Defense Basic Scientific Research Program of China； the Chongqing Science and Technology Commission, China （No. cstc2017zdcyzdzx X0006）； the Qinghai Science and Technology Program, China （No. 2018- GX-A1）；

本校为第一机构

The influence of Mn content on the microstructure, tensile properties and strain-hardening behaviors of extruded Mg-1Gd-0.5Zn-xMn (x=0, 0.3 and 1, wt.%) alloy sheets was investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), and electron backscatter diffraction (EBSD). The results show that the completely recrystallized grain structure and the extrusion direction (ED)-titling texture are observed in all the extruded sheets. The mean grain size and weakened ED-titling texture of the extruded sheets are gradually reduced with increasing Mn content. This is primarily associa...

采用X射线衍射仪（XRD）、扫描电子显微镜（SEM）和背散射电子衍射仪（EBSD）研究了Mn含量对挤压Mg-1Gd-0.5Zn-xMn （x = 0、0.3和1，质量分数，%）合金板材显微组织、拉伸性能和应变硬化行为的影响。结果表明，所有挤压板材均呈现出完全再结晶晶粒组织和向挤压方向偏转的织构。随着Mn含量的增加，挤压板材的平均晶粒尺寸逐渐减小，偏转织构减弱。主要原因是由于Mn的添加形成了新的细小α-Mn颗粒相。拉伸性能结果表明，Mn的添加提高了挤压Mg-1Gd-0.5Zn-xMn合金板材的屈服强度、抗拉强度和伸长率，这主要是由于细小的晶粒和α-Mn颗粒。此外，Mg-1Gd-0.5Zn-xMn合金板材中，Mg-1Gd-0.5Zn-1Mn合金板...