+高级检索
Sb对Mg-5Sn-2Al-1.5Zn-0.8Si合金组织和性能的影响
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金 (51271073);河南省重点攻关项目 (102102210031)


Effects of Trace Sb on Microstructure and Properties of Mg-5Sn-2Al-1.5Zn-0.8Si Magnesium Alloy
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    在熔炼时以单质形式加入Sb元素,研究了不同含量的Sb对Mg-5Sn-2Al-1.5Zn-0.8Si合金显微组织和力学性能的影响。结果表明,Sb能与Mg基体结合生成Mg3Sb2相。加入0.9%(质量分数)的Sb对Mg2Si相的汉字状结构具有强烈变质作用,Mg2Si中的Si能与Sn发生取代作用,生成Mg2(Si,Sn)复合相,该相的物理性能介于Mg2Si与Mg2Sn之间。随着Sb含量的增加,铸态合金和挤压态合金的延伸率逐渐减小,而抗拉强度呈现先增加后降低的趋势。挤压态合金的强度和塑性明显优于铸态合金,并且Sb含量的增加有利于改善Mg-5Sn-2Al-1.5Zn-0.8Si合金的耐热性能

    Abstract:

    The effects of stibium element on microscopic structure and mechanical properties of Mg-5Sn-2Al-1.5Zn-0.8Si magnesium alloy were studied when Sb was added into melt in the form of pure metal. The results indicate that Sb element and Mg matrix combine to form Mg3Sb2 phases. The addition of 0.9% Sb has a strong modification for Chinese script morphology of Mg2Si phases. Sn can replace Si of Mg2Si phase to form Mg2(Si,Sn) composite phases, whose physical properties lie between Mg2Si and Mg2Sn. With the increase of Sb content, the elongations of the as-cast alloy and the extruded gradually decrease, while tensile strengths increase firstly and then decrease. Strength and plasticity of the extruded alloy are better than that of the cast alloy, and the increase of Sb content is beneficial to improve the heat resistance of Mg-5Sn-2Al-1.5Zn-0.8Si alloy

    参考文献
    相似文献
    引证文献
引用本文

张建新,高爱华,郭学锋,任 磊. Sb对Mg-5Sn-2Al-1.5Zn-0.8Si合金组织和性能的影响[J].稀有金属材料与工程,2014,43(9):2247~2251.[Zhang Jianxin, Gao Aihua, Guo Xuefeng, Ren Lei. Effects of Trace Sb on Microstructure and Properties of Mg-5Sn-2Al-1.5Zn-0.8Si Magnesium Alloy[J]. Rare Metal Materials and Engineering,2014,43(9):2247~2251.]
DOI:[doi]

复制
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2013-09-19
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2015-02-25
  • 出版日期: