Effects of Zr, Mo and Y-Doping on Microstructure and Mechanical, Electrical Properties of Au-Pd Binary Alloy

摘要:

在Au-Pd系中分别加入Zr、Mo、Y 3种稀有金属元素，研究稀有金属元素的加入对Au-Pd合金组织结构及力学和电学性能的影响。合金在真空高频炉中熔炼。首先用X射线衍射仪和金相显微镜对合金的显微组织和结构进行分析，用电桥、涡流导电仪测量合金的电阻率，用拉力试验机测量合金的力学性能。结果表明稀有金属元素的加入可以有效地细化合金的显微组织，并且提高合金的熔点、密度、力学性能和电阻率，但是合金的加工性能有所降低

Abstract:

Au-Pd alloys doped with Zr, Mo and Y, respectively, were prepared in a vacuum high frequency melting furnace. The effects of rare metal doping on Microstructure and mechanical, electrical properties of the binary alloy was investigated. X-ray diffractometer and metallographic microscopy were employed to detect the microstructures. Electric bridge and eddy current conductive instrument were employed to test the electrical resistivity and the mechanical properties of alloys were tested by AG-X100KN type tensile testing machine. The results show that adding rare metal elements into Au-Pd system could refine microstructure effectively, increase the melting point, density and electrical resistivity of the alloy, and improve mechanical properties, but the processing property of the alloy is decreased