Zn含量对Mg-10Gd-4.8Y-0.6Zr合金组织和力学性能的影响

李慧中 刘洪挺 陈健美 王海军 梁霄鹏

李慧中, 刘洪挺, 陈健美, 王海军, 梁霄鹏. Zn含量对Mg-10Gd-4.8Y-0.6Zr合金组织和力学性能的影响[J]. 航空材料学报, 2011, 31(5): 6-11.
引用本文: 李慧中, 刘洪挺, 陈健美, 王海军, 梁霄鹏. Zn含量对Mg-10Gd-4.8Y-0.6Zr合金组织和力学性能的影响[J]. 航空材料学报, 2011, 31(5): 6-11.
LI Hui-zhong, LIU Hong-ting, CHEN Jian-mei, WANG Hai-jun, LIANG Xiao-peng. Effects of Zn Addition on Microstructure and Mechanical Properties of Mg-10Gd-4.8Y-0.6Zr Alloy[J]. Journal of Aeronautical Materials, 2011, 31(5): 6-11.
Citation: LI Hui-zhong, LIU Hong-ting, CHEN Jian-mei, WANG Hai-jun, LIANG Xiao-peng. Effects of Zn Addition on Microstructure and Mechanical Properties of Mg-10Gd-4.8Y-0.6Zr Alloy[J]. Journal of Aeronautical Materials, 2011, 31(5): 6-11.

Zn含量对Mg-10Gd-4.8Y-0.6Zr合金组织和力学性能的影响

基金项目: 

中国博士后基金资助项目(20070420828);中南大学博士后基金资助项目(2007-8)

详细信息
    作者简介:

    李慧中(1968- ),男,博士,副教授,(E-mail)lhz606@mail.csu.edu.cn.

  • 中图分类号: TG146.1;TG146.2

Effects of Zn Addition on Microstructure and Mechanical Properties of Mg-10Gd-4.8Y-0.6Zr Alloy

  • 摘要: 采用显微硬度和力学性能测试及金相显微镜、扫描电镜、透射电镜、X射线衍射等分析手段,研究了Zn含量对Mg-10Gd-4.8Y-0.6Zr合金挤压以及时效处理后合金组织和力学性能的影响.结果表明,在Mg-10Gd-4.8Y-0.6Zr合金中添加Zn元素,有利于细化合金晶粒,提高挤压态的强度.未添加Zn的合金T5态晶粒尺寸约为25μm,添加1%(质量分数,下同)Zn后,晶粒尺寸约为15μm,Zn含量为3%时,晶粒尺寸约为10μm.当Zn含量为1%时,合金挤压态和时效态的抗拉强度分别为337MPa,397MPa,屈服强度分别为128MPa,148MPa,伸长率分别为10.0%,5.0%,具有较好的综合性能.

     

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  • 刊出日期:  2011-10-01

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