Role of yttrium content in twinning behavior of extruded Mg—Y sheets under tension/compression

The influence of Y content on the grain-scale twinning behavior in extruded Mg—xY (x=0.5, 1, 5, wt.%) sheets under uniaxial tension and compression along the extruded direction was statistically investigated. An automatic twin variant analysis was employed, based on large data sets obtained by elect...

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Bibliographic Details
Published in:Transactions of Nonferrous Metals Society of China 2022-11, Vol.32 (11), p.3534-3549
Main Authors: CHAI, Yan-qin, YIN, Dong-di, HUA, Shen, HUANG, Guang-hao, ZHOU, Hao, ZHENG, Jiang, WANG, Qu-dong
Format: Article
Language:English
Subjects:
anomalous twin
deformation twinning
Mg—RE alloys
Schmid factor
twin variant selection
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Summary:The influence of Y content on the grain-scale twinning behavior in extruded Mg—xY (x=0.5, 1, 5, wt.%) sheets under uniaxial tension and compression along the extruded direction was statistically investigated. An automatic twin variant analysis was employed, based on large data sets obtained by electron backscatter diffraction (EBSD), including 2691 grains with 977 twins. The {10▪2} tension twinning (TTW) dominance and prevailing anomalous twinning behavior (Schmid factor (m)
ISSN:1003-6326
DOI:10.1016/S1003-6326(22)66037-0