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首页> 外文期刊>Materials Science and Engineering >Effect of Er contents on the microstructure of long period stacking ordered phase and the corresponding mechanical properties in Mg-Dy-Er-Zn alloys
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Effect of Er contents on the microstructure of long period stacking ordered phase and the corresponding mechanical properties in Mg-Dy-Er-Zn alloys

机译:Er含量对Mg-Dy-Er-Zn合金长时间堆放有序相组织及力学性能的影响

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摘要

The influence of Er contents on the mechanical properties and microstructure of the long period stacking ordered (LPSO) phases in Mg96.6Zn0.91Dy2.17Er0.32and Mg96.23Zn0.88Dy2.21Er0.68alloys have been studied. The results showed that the LPSO structures in the two alloys are 18R-type in the as-cast state. And co-existence of 18R-type and 14H-type LPSO phases after heat-treated has been observed in the two alloys. After hot extrusion, the ultimate tensile strength (UTS), yield strength (YS) and elongation (EL) of the Mg96.6Zn0.91Dy2.17Er0.32alloy have reached the value of 303.42 MPa, 172.76 MPa and 18.31%, respectively. The UTS, YS and EL of the as-extruded Mg96.23Zn0.88Dy2.21Er0.68alloy are 334.63 MPa, 214.85 MPa and 19.59%, respectively.
机译:研究了Er含量对Mg96.6Zn0.91Dy2.17Er0.32和Mg96.23Zn0.88Dy2.21Er0.68合金中长期堆积有序(LPSO)相的力学性能和显微组织的影响。结果表明,两种合金的LPSO结构在铸态时均为18R型。并且在两种合金中观察到热处理后18R型和14H型LPSO相的共存。热挤压后,Mg96.6Zn0.91Dy2.17Er0.32合金的极限抗拉强度(UTS),屈服强度(YS)和伸长率(EL)分别达到303.42 MPa,172.76 MPa和18.31%。挤压后的Mg96.23Zn0.88Dy2.21Er0.68合金的UTS,YS和EL分别为334.63 MPa,214.85 MPa和19.59%。

著录项

  • 来源
    《Materials Science and Engineering》 |2018年第7期|461-467|共7页
  • 作者单位

    Center for Electron Microscopy, School of Physics and Technology, Wuhan University,MOE Key Laboratory of Artificial Micro- and Nano-structures, School of Physics and Technology, Wuhan University;

    Center for Electron Microscopy, School of Physics and Technology, Wuhan University,MOE Key Laboratory of Artificial Micro- and Nano-structures, School of Physics and Technology, Wuhan University;

    Center for Electron Microscopy, School of Physics and Technology, Wuhan University,MOE Key Laboratory of Artificial Micro- and Nano-structures, School of Physics and Technology, Wuhan University;

    Center for Electron Microscopy, School of Physics and Technology, Wuhan University,MOE Key Laboratory of Artificial Micro- and Nano-structures, School of Physics and Technology, Wuhan University;

    Center for Electron Microscopy, School of Physics and Technology, Wuhan University,MOE Key Laboratory of Artificial Micro- and Nano-structures, School of Physics and Technology, Wuhan University;

    Center for Electron Microscopy, School of Physics and Technology, Wuhan University,MOE Key Laboratory of Artificial Micro- and Nano-structures, School of Physics and Technology, Wuhan University,Department Science and Technology on High Strength Structural Materials Laboratory, Central South University;

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

    Magnesium alloy; LPSO phase; Microstructure; Mechanical properties;

    机译:镁合金;LPSO相;组织;力学性能;

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