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Volume 25 Issue 2
Feb.  2018
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文章导航 >  矿物冶金与材料学报（英文）  > 2018  >  25(2): 236-243
Xian-hua Yue, Chun-fang Liu, Hui-hua Liu, Su-fen Xiao, Zheng-hua Tang, and Tian Tang, Effects of hot compression deformation temperature on the microstructure and properties of Al-Zr-La alloys, Int. J. Miner. Metall. Mater., 25(2018), No. 2, pp. 236-243. https://doi.org/10.1007/s12613-018-1566-y
Cite this article as:
Xian-hua Yue, Chun-fang Liu, Hui-hua Liu, Su-fen Xiao, Zheng-hua Tang, and Tian Tang, Effects of hot compression deformation temperature on the microstructure and properties of Al-Zr-La alloys, Int. J. Miner. Metall. Mater., 25(2018), No. 2, pp. 236-243. https://doi.org/10.1007/s12613-018-1566-y
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研究论文

Effects of hot compression deformation temperature on the microstructure and properties of Al-Zr-La alloys

  • College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China

  • TBEA Deyang Cable Stock Co., Ltd., Deyang 618000, China

  • 通讯作者:

    Zheng-hua Tang    E-mail: sacdtzh@163.com

  • The main goal of this study is to investigate the microstructure and electrical properties of Al-Zr-La alloys under different hot compression deformation temperatures. In particular, a Gleeble 3500 thermal simulator was used to carry out multi-pass hot compression tests. For five-pass hot compression deformation, the last-pass deformation temperatures were 240, 260, 300, 340, 380, and 420℃, respectively, where the first-pass deformation temperature was 460℃. The experimental results indicated that increasing the hot compression deformation temperature with each pass resulted in improved electrical conductivity of the alloy. Consequently, the flow stress was reduced after deformation of the samples subjected to the same number of passes. In addition, the dislocation density gradually decreased and the grain size increased after hot compression deformation. Furthermore, the dynamic recrystallization behavior was effectively suppressed during the hot compression process because spherical Al3Zr precipitates pinned the dislocation movement effectively and prevented grain boundary sliding.
    • Research Article

    Effects of hot compression deformation temperature on the microstructure and properties of Al-Zr-La alloys

    + Author Affiliations
      Abstract
    • The main goal of this study is to investigate the microstructure and electrical properties of Al-Zr-La alloys under different hot compression deformation temperatures. In particular, a Gleeble 3500 thermal simulator was used to carry out multi-pass hot compression tests. For five-pass hot compression deformation, the last-pass deformation temperatures were 240, 260, 300, 340, 380, and 420℃, respectively, where the first-pass deformation temperature was 460℃. The experimental results indicated that increasing the hot compression deformation temperature with each pass resulted in improved electrical conductivity of the alloy. Consequently, the flow stress was reduced after deformation of the samples subjected to the same number of passes. In addition, the dislocation density gradually decreased and the grain size increased after hot compression deformation. Furthermore, the dynamic recrystallization behavior was effectively suppressed during the hot compression process because spherical Al3Zr precipitates pinned the dislocation movement effectively and prevented grain boundary sliding.
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