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首页> 外文期刊>Materials Science and Engineering >Effects of Zn addition on the mechanical properties and texture of extruded Mg-Zn-Ca-Ce magnesium alloy sheets
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Effects of Zn addition on the mechanical properties and texture of extruded Mg-Zn-Ca-Ce magnesium alloy sheets

机译：锌添加量对挤压Mg-Zn-Ca-Ce镁合金薄板力学性能和织构的影响

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摘要

Mg-x Zn-0.2Ca-0.2Ce (x = 0.5, 1.0, 1.5 and 2.0, wt%) alloys were subject to hot extrusion, for the purpose of evaluating the effects of Zn addition on the mechanical properties and texture characteristics in this current paper. A spread of basal poles in extrusion direction (ED) was found in all four extruded alloys, beyond that, the rare earth texture component existed in the alloys. It is interesting that both the ED-split texture and rare earth texture components reduced with the increasing Zn addition; furthermore, the increasing Zn addition leaded to a broader spread of basal poles toward transverse direction (TD). Both the strength and plasticity were improved with the increasing Zn addition, by solid solution hardening, solid solution softening, and the enhanced cohesion of grain boundaries; while further Zn addition deteriorated the plasticity, because of the dominant solid solution hardening. Mg-Zn-Ca-Ce magnesium alloys received the best comprehensive mechanical properties when Zn addition reached 1.5 wt%, with tension yield strength (TYS) and tension fracture elongation (TFE) about 131.0 MPa and 42.4%, respectively, in ED.
机译：对Mg-x Zn-0.2Ca-0.2Ce（x = 0.5、1.0、1.5和2.0 wt％）合金进行热挤压，目的是评估Zn添加对其力学性能和织构特性的影响当前文件。在所有四种挤压合金中均发现了基极在挤压方向（ED）上的扩散，除此之外，合金中还存在稀土织构成分。有趣的是，ED分裂纹理和稀土纹理成分都随Zn添加量的增加而减少。此外，锌的添加量增加导致基极向横向（TD）的分布更广。随着固溶硬化，固溶软化和晶界内聚力的增强，锌含量的增加，强度和塑性均得到改善。而锌的添加又由于固溶硬化而使可塑性下降。当锌的添加量达到1.5 wt％时，Mg-Zn-Ca-Ce镁合金具有最佳的综合机械性能，ED中的拉伸屈服强度（TYS）和拉伸断裂伸长率（TFE）分别约为131.0 MPa和42.4％。

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  • 来源
    《Materials Science and Engineering》 |2017年第29期|46-54|共9页
  • 作者

    Guangang Wang; Guangsheng Huang; Xiang Chen; Qianyuan Deng; Aitao Tang; Bin Jiang; Fusheng Pan;

  • 作者单位

    State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China,National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China;

    State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China,National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China,Chongqing Research Center for Advanced Materials, Chongqing Academy of Science & Technology, Chongqing 401123, China;

    State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China,National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China;

    State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China,National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China;

    State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China,National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China;

    State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China,National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China,Chongqing Research Center for Advanced Materials, Chongqing Academy of Science & Technology, Chongqing 401123, China;

    State Key Laboratory of Mechanical Transmission, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China,National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China,Chongqing Research Center for Advanced Materials, Chongqing Academy of Science & Technology, Chongqing 401123, China;

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

    Mg-Zn-Ca-Ce; Extrusion; Texture; Mechanical properties;

    机译：Mg-Zn-Ca-Ce;挤压;质地;机械性能;

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