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强基面织构AZ31合金压缩过程中孪晶对行为研究
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1.湖南省 长沙市 长沙学院 机电工程学院;2.湖南省 长沙市 望城区 泰嘉新材股份有限公司

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the Changsha University Talent Introduction Project (50800-92808)


Paired twinning behavior during compression test of a strongly basal textured AZ31 alloy
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a Department of Mechanical and Electrical Engineering,Changsha University

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    摘要:

    挤压态AZ31合金室温下,沿挤压方向进行压缩变形,产生大量拉伸孪晶。采用斯密特因子和应变兼容因子对孪晶对包括相连的孪晶对和随机组队的孪晶对进行分析。

    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.

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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,2020,49(2):429~434.[Xiong Han-Qing a, Wu Yi-Ping a, Jia Yu-Zhen b, Xie Shao-Hui a, 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.]
DOI:10.12442/j. issn.1002-185X.20180933

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历史
  • 收稿日期:2018-09-07
  • 最后修改日期:2018-10-15
  • 录用日期:2018-11-08
  • 在线发布日期: 2020-03-12
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