Microstructure and Properties of Die Casting Ag-Mg-Ni Alloy Ring

Cui Hao; Xie Ming; Liu Manmen; Yang Youcai; Chen Yongtai; Zhang Jiming; Kong Jianwen; Zhang Guoquan; Chen Hongyan

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Microstructure and Properties of Die Casting Ag-Mg-Ni Alloy Ring
Vol. 31, Issue 1, Pages: 35-37(2011)
Published： 2011 ，
DOI：

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[1]崔浩,谢明,刘满门,杨有才,陈永泰,张吉明,孔健稳,张国全,陈宏燕.压铸Ag-Mg-Ni合金导电环的组织及性能[J].特种铸造及有色合金,2011,31(01):35-37+104.

Cui Hao, Xie Ming, Liu Manmen, et al. Microstructure and Properties of Die Casting Ag-Mg-Ni Alloy Ring. [J]. Special Casting & Nonferrous Alloys 31(1):35-37(2011)
[1]崔浩,谢明,刘满门,杨有才,陈永泰,张吉明,孔健稳,张国全,陈宏燕.压铸Ag-Mg-Ni合金导电环的组织及性能[J].特种铸造及有色合金,2011,31(01):35-37+104. DOI：

Cui Hao, Xie Ming, Liu Manmen, et al. Microstructure and Properties of Die Casting Ag-Mg-Ni Alloy Ring. [J]. Special Casting & Nonferrous Alloys 31(1):35-37(2011) DOI：

摘要

利用压铸成形技术制备了银镁镍合金环

并对合金的组织和性能进行了研究。结果表明

压铸成形技术制备的银镁镍合金环具有近净成形的特征

但内部存在大量孔洞;合金细晶区厚度可达300～500μm

且Mg、Ni元素分布均匀

未发现明显偏析;压铸制备的银镁镍合金环密度为10.078g/cm3、硬度（HV0.2）为44.6、电导率为43MS/m

各项性能均低于铸造-热挤压方法制备的试样。

Abstract

Microstructure and properties of die casting Ag-Mg-Ni alloy ring were investigated.It is found that although die casting Ag-Mg-Ni alloy ring exhibits near-net forming

there exist amounts of holes in the ring.Thickness of fine grain region in the alloy reaches up to 300～400μm

and Mg and Ni elements are uniformly distributed into the alloy in the absence of segregation.The density

hardness and electric conductivity of die casting Ag-Mg-Ni ring are 10.078 g/cm 3

44.6（HV0.2） and 43 MS/m

respectively

which are lower than those of casting-hot extrusion ones.