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首页> 外文会议>Nanomaterials by severe plastic deformation >Microstructure and Mechanical Performance of AZ31-1.7 wt. Si Alloy Processed by Cyclic Channel Die Compression
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Microstructure and Mechanical Performance of AZ31-1.7 wt. Si Alloy Processed by Cyclic Channel Die Compression

机译：循环通道模具压缩加工AZ31-1.7 wt。％Si合金的组织和力学性能

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摘要

Cyclic channel die compression (CCDC) of AZ31-1.7 wt.% Si alloy was performed up to 5 passes at 623 K in order to investigate the microstructure and mechanical properties of compressed alloys. The results show that multi-pass CCDC is very effective to refine the matrix grain and Mg_2Si phases. After the alloy is processed for 5 passes, the mean grain size decreases from 300 u.m of as-cast to 8 μm. Both dendritic and Chinese script type Mg_2Si phases break into small polygonal pieces and distribute uniformly in the matrix. The tensile strength increases prominently from 118 MPa to 216 MPa, whereas the hardness of alloy deformed 5 passes only increase by 8.4% compared with as-cast state.
机译：为了研究压缩合金的微观结构和力学性能，在623 K下对AZ31-1.7 wt。％Si合金进行了循环通道模压（CCDC）多达5次。结果表明，多道次CCDC对细化基体晶粒和Mg_2Si相非常有效。合金加工5道次后，平均晶粒尺寸从铸态的300μm减小到8μm。树状和中文字型Mg_2Si相均破碎成小的多边形碎片，并均匀地分布在基体中。拉伸强度从118 MPa显着增加到216 MPa，而变形5合金的硬度与铸态相比仅增加8.4％。

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  • 来源
  • 会议地点 Nanjing(CN);Nanjing(CN)
  • 作者

    Wei Guo; Qudong Wang; Manping Liu; Tao Peng; Xintao Liu; Hao Zhou;

  • 作者单位

    National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University,Shanghai 200240, China,State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China;

    National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University,Shanghai 200240, China,State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China;

    National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University,Shanghai 200240, China,State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China;

    National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University,Shanghai 200240, China,State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China;

    National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University,Shanghai 200240, China,State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China;

    National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University,Shanghai 200240, China,State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 塑料;
  • 关键词

    AZ31-1.7 wt. Si alloy; cyclic channel die compression; microstructure; mechanical performance;

    机译：AZ31-1.7 wt。％Si合金;循环通道模压缩微观结构机械性能;

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