Effects of Cu on microstructure, mechanical properties and damping capacity of as-cast Mg-3％ Ni alloy

摘要：

The effects of Cu addition on microstructure, mechanical properties and damping capacity of Mg-3％Ni based alloy were investigated by using tensile tests, X-ray diffraction,scanning electron microscope and dynamic mechanical analyzer.The results show that Cu addition could reduce the size of α-Mg dendrites and a new binary phase Mg2Cu can be identified,which mostly distributes among the inter-dendrites in the form of typical lamellar-like eutectic microstructure and improve the mechanical properties.In low strain amplitude,with the increase of Cu addition,the damping capacities of Cu contained alloys change little,while in high strain range,the internal friction values decrease gradually with the grain refinement and increasing content of eutectic phase.

关键词： Mg-3 Ni alloy damping capacity mechanical property Granato-Lucke theory

作者: Chen Shuqun Dong Xuanpu Xiong Xiaoqing Ma Rong Fan Zitian

作者单位: State Key Laboratory of Materials Processing and Die & Mould Technology,Huazhong University of Scien Jiaxing University,Jiaxing,314001,China

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Advanced Material Research(2012 第二届先进材料研究国际会议 ICAMR2012)

会议地点: 成都

会议语种:英文

页码: 52-57

在线出版日期: 2012-01-07（万方平台首次上网日期，不代表论文的发表时间）