Ageing Characteristics of Cu-Ag-Cr Alloy

Wang Yanrui Liu Ping Lei Jingguo Kang Buxi Tian Baohong

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Ageing Characteristics of Cu-Ag-Cr Alloy
Issue 8, Pages: 499-501(2005)
Published： 2005 ，
DOI：

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[1]王艳蕊,刘平,雷静果,康布熙,田保红.Cu-Ag-Cr合金时效特性的研究[J].特种铸造及有色合金,2005(08):499-501+447-448.

Wang Yanrui Liu Ping Lei Jingguo Kang Buxi Tian Baohong. Ageing Characteristics of Cu-Ag-Cr Alloy. [J]. Special Casting & Nonferrous Alloys (8):499-501(2005)
[1]王艳蕊,刘平,雷静果,康布熙,田保红.Cu-Ag-Cr合金时效特性的研究[J].特种铸造及有色合金,2005(08):499-501+447-448. DOI：

Wang Yanrui Liu Ping Lei Jingguo Kang Buxi Tian Baohong. Ageing Characteristics of Cu-Ag-Cr Alloy. [J]. Special Casting & Nonferrous Alloys (8):499-501(2005) DOI：

摘要

研究了时效参数和变形量对Cu-0.1Ag-0.46Cr合金性能的影响。结果表明:合金经940℃×20min固溶后

在520℃时效1h可获得较高的电导率和硬度。时效前对合金加以冷变形可以显著提高其显微硬度

合金经60%变形后在480℃时效30min时

峰值硬度可达146.71HV

电导率可达52.9MS/m

而固溶后直接时效分别仅为123.59HV和46MS/m。而合金固溶后淬入650℃碱浴中保温20s可使合金的显微硬度和电导率均有所提高。

Abstract

Effects of ageing variables and deformation degree on the mechanical properties of Cu-0.1Ag-0.46Cr alloy were investigated.It was revealed that the alloy can possesses higher electric conductivity and hardness with ageing at 520 ℃ for 1h after solid solution at 940 ℃ for 20 min.The cold deformation can obviously improve the hardness of the alloy without ageing treatment.The peak hardness and electric conductivity of 60% cold deformed alloy are 146.71 HV and 52.9 MS/m respectively with ageing at 480℃ for 30min while the values are only 123.59HV and 46 MS/m with direct ageing after solid solution treatment.The microhardness and electric conductivity can be remarkably improved with quenching at 650 ℃ for 20s in alkaline solution after solid solution treatment