期刊
JOURNAL OF MAGNESIUM AND ALLOYS
卷 8, 期 3, 页码 899-909出版社
KEAI PUBLISHING LTD
DOI: 10.1016/j.jma.2019.10.002
关键词
Mg-1Sn-1Zn-1Al; Hot deformation; Twinning; Dynamic recrystallization; Texture
资金
- Natural Science Foundation of China [51404166, 51704209]
- Natural Science Foundation of Shanxi [201801D121088]
- Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi [2014017, 201802034]
Texture evolution of an extruded dilute Mg-1Sn-1Zn-1Al alloy was thoroughly investigated based on the twinning and dynamic recrystal-lization (DRX) behavior via hot compression at a strain rate of 10 s(-1) and temperature of 225 degrees C. It was found that the types and intensities of the texture are strongly dependent on the fraction of twins and DRX modes as well as regions where sub-grain boundaries (sub-GBs) are intensively accumulated. At the initial stage of deformation, the formation of compression direction (CD)-tilted basal texture was mainly determined by the occurrence of {10 (1) over bar2} extension twins. As the strain increases, the variation in the texture intensity was greatly dominated by the DRX modes but the type of main texture remained unchanged. These findings are of great importance for texture modification of wrought Mg-Sn-based alloys during post-deformation. (c) 2020 Published by Elsevier B.V. on behalf of Chongqing University.
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