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Gd添加量对Zn-1.2Cu-1.2Mg锌合金组织和性能的影响
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1.南京工程学院 材料科学与工程学院,江苏 南京 211167;2.江苏省先进结构材料与应用技术重点实验室,江苏 南京 211167

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Jiangsu Key Laboratory of Advanced Structural Materials and Applied Technology Open Fund ( ASMA201706); Science and technology innovation fund for college students of Nanjing Institute of Engineering (TB202002053)


Effect of Gd Addition Amount on Microstructure and Properties of Zn-1.2Cu-1.2Mg Zinc Alloy
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Affiliation:

1.School of Material Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, China;2.Advanced Structural Materials and Application Technology of Jiangsu Province, Nanjing 211167, China

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Jiangsu Key Laboratory of Advanced Structural Materials and Applied Technology Open Fund (ASMA201706); Science and Technology Innovation Fund for College Students of Nanjing Institute of Engineering (TB202002053)

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    摘要:

    研究了Zn-1.2Cu-1.2Mg-xGd(x=0,0.1,0.25,0.5,质量分数,%)锌合金微观组织、在模拟体液中的腐蚀行为和力学性能。结果表明,锌合金组织主要由Zn固溶体和Mg2Zn11金属间化合物组成。当Gd添加量为0.5%时,形成了GdZn12化合物。锌合金的硬度随Gd添加量的增加而增加,在0.5% Gd添加量时,硬度达到最大值为1530 MPa。在0.25% Gd添加量时锌合金具有高的抗拉伸强度,而在0.1% Gd添加量时锌合金具有最低的腐蚀速率。

    Abstract:

    The microstructure, immersion corrosion behaviour in simulated body fluid and mechanical properties of Zn-1.2Cu-1.2Mg-xGd (x=0, 0.1, 0.25, 0.5, wt%) alloys were studied. The results show that the microstructure of zinc alloy is mainly composed of Zn solid solution and Mg2Zn11 intermetallic compound. When Gd addition content is 0.5wt%, the GdZn12 intermetallic compound appears. The microhardness of zinc alloy increases with the increase of Gd addition content, and when the addition content of Gd is 0.5wt%, the microhardness reaches maximum, 1530 MPa. The tensile strength increases first and decreases afterwards, and when the Gd addition content is 0.25wt%, the zinc alloy has high tensile strength. Zinc alloy with 0.1wt% Gd addition content has the lowest corrosion rate.

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王红星,张炎,吴灿辉,鲁千怡,刘龙龙,薛亚军.Gd添加量对Zn-1.2Cu-1.2Mg锌合金组织和性能的影响[J].稀有金属材料与工程,2021,50(12):4282~4287.[Wang Hongxing, Zhang Yan, Wu Canhui, Lu Qianyi, Liu Longlong, Xue Yajun. Effect of Gd Addition Amount on Microstructure and Properties of Zn-1.2Cu-1.2Mg Zinc Alloy[J]. Rare Metal Materials and Engineering,2021,50(12):4282~4287.]
DOI:10.12442/j. issn.1002-185X.20200714

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历史
  • 收稿日期:2020-09-15
  • 最后修改日期:2021-11-23
  • 录用日期:2021-03-08
  • 在线发布日期: 2021-12-30
  • 出版日期: 2021-12-24