陈先华.M-Y-Zr-Nd 合金微观结构、力学性能、电磁屏蔽性能的研究[J].稀有金属材料与工程,2016,45(1):13~17.[Chen xianhua.Microstructure, mechanical properties and electromagnetic shielding effectiveness of Mg-Y-Zr-Nd alloy[J].Rare Metal Materials and Engineering,2016,45(1):13~17.]
M-Y-Zr-Nd 合金微观结构、力学性能、电磁屏蔽性能的研究
投稿时间:2013-12-19  修订日期:2014-05-18
中文关键词:  Mg-Y-Zr-Nd合金  微观结构  力学性能  电磁屏蔽性能
基金项目:国家自然科学基金项目,重庆市科委资助项目
中文摘要:
      制备了不同Nd含量的Mg-Y-Zr-xNd合金铸锭,研究了Nd含量对微观结构、力学性能和电磁屏蔽性能的影响。实验结果表明,当Nd含量增加到2.63%时,晶粒尺寸从70.1μm细化到42.9μm,并且在晶界不连续分布骨骼状β相。随着Nd含量增加,合金强度和电磁屏蔽性能都会增加。Nd含量为2.63%时同时具有良好的强度和电磁屏蔽性能,T6处理能进一步提高屏蔽效能。根据分析以上实验结果是由于Nd的添加量不同引起微观结构不同造成的。
Microstructure, mechanical properties and electromagnetic shielding effectiveness of Mg-Y-Zr-Nd alloy
英文关键词:Mg-Y-Zr-Nd alloy  Microstructure  Mechanical properties  EMI shielding properties
英文摘要:
      The as-cast Mg-Y-Zr-xNd alloys with different Nd contents were prepared, and the effects of Nd content on microstructure, mechanical properties and electromagnetic interference (EMI)shielding properties were investigated.The results showed that the grain size was refined from 70.1 to 42.9 μm, discontinuous bone-shaped β phases formed mostly in the triple junction of grain boundaries when the content of Nd increased to 2.63 wt.%. The mechanical properties and EMI shielding capacity were both enhanced significantly by adding Nd element. The alloy with 2.63 wt.% Nd had a good combination of mechanical properties and EMI properties. T6 heat treatment was able to further improve the EMI shielding effectiveness. The above-mentioned observations are analyzed in terms of microstructural variation due to the Nd addition.
作者单位E-mail
陈先华 重庆大学材料科学与工程学院 xhchen@cqu.edu.cn 
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