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熊汉青,吴懿萍,贾寓真,谢邵辉,李国锋.强基面织构AZ31合金压缩过程中孪晶对行为研究[J].稀有金属材料与工程(英文),2020,49(2):429~434.[Xiong Han-Qing a,Wu Yi-Ping a,Jia Yu-Zhen b,Xie Shao-Hui a and Li Guo-Feng a.Paired twinning behavior during compression test of a strongly basal textured AZ31 alloy[J].Rare Metal Materials and Engineering,2020,49(2):429~434.]
Paired twinning behavior during compression test of a strongly basal textured AZ31 alloy
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Received:September 07, 2018  Revised:October 15, 2018
DOI:
Key words: AZ31 alloy  Twinning  Schmid factor  Strain compatibility factor
Foundation item:the Changsha University Talent Introduction Project (50800-92808)
Author NameAffiliation
Xiong Han-Qing a,Wu Yi-Ping a,Jia Yu-Zhen b,Xie Shao-Hui a and Li Guo-Feng a  
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Abstract:
      An extruded AZ31 alloy was compressed along the extrusion direction at room temperature. Profuse tensile twins were activated. Paired twins including the connected twin pairs and randomly paired twins (unconnected twins) were studied by a combined analysis of Schmid factor and strain compatibility factor. The results show that the nucleation of connected twin pairs preferentially occurs in the neighboring grains with the misorientation of 25°. About 88% of the connected twins have high Schmid factor and around 76% show high strain compatibility factor. The occurrence of connected twin pairs with low values of Schmid factor is well interpreted by their high values of strain compatibility factor. Around 22% of the unconnected twin pairs have the strain compatibility factor values of zero.