| 时效处理对挤压CuCr25合金显微硬度及电导率的影响 |
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| 引用本文： | 周志明,王亚平,彭成允,陈园芳. 时效处理对挤压CuCr25合金显微硬度及电导率的影响[J]. 高压电器, 2008, 44(3): 225-228 |
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| 作者姓名： | 周志明 王亚平 彭成允 陈园芳 |
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| 作者单位： | 重庆工学院材料科学与工程学院,重庆,400050;西安交通大学理学院材料与物理系,陕西,西安,110016 |
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| 基金项目： | 教育部跨世纪优秀人才培养计划 , 重庆工学院校科研和教改项目 , 重庆市教委资助项目 |
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| 摘 要： | 为了进一步提高CuCr合金的使用性能,笔者研究了挤压变形CuCr25合金的显微组织变化以及不同的时效温度和时效时间条件下CuCr25合金显微硬度和电导率的变化规律。结果表明:挤压变形后合金的显微组织均匀,晶粒大大细化;CuCr25合金挤压后经过950℃×1h固溶,在450℃时效2h可获得较好的综合性能,显微硬度可达到156HV,较铸态提高了68%,电导率可达24mS/m,较铸态提高了14%。
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| 关 键 词： | CuCr25合金 时效处理 显微硬度 电导率 |
Effect of Aging Treatment on Microhardness and Electrical Conductivity of Extruded CuCr25 Alloy |
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| ZHOU Zhi-ming,WANG Ya-ping,PENG Cheng-yun,CHEN Yuan-fang. Effect of Aging Treatment on Microhardness and Electrical Conductivity of Extruded CuCr25 Alloy[J]. High Voltage Apparatus, 2008, 44(3): 225-228 |
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| Authors: | ZHOU Zhi-ming WANG Ya-ping PENG Cheng-yun CHEN Yuan-fang |
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| Abstract: | To further extend the application of CuCr25, the microstructure of extruded CuCr25 alloy was observed, and microhardness and electric conductivity of extruded CuCr25 alloy were also investigated after aging at different temperature and time. The results show that refined and homogeneous Cr phase is obtained, and higher microhardness and electric conductivity are gained after solid solution treatment at 950 ℃ for one hour plus aging at 450 ℃ for two hours. After aging, the extruded CuCr25 alloy achieves the microhardness about HV156 with a 68% increase, and the electric conductivity about 24Ms/m with a 14% increase, compared with the vacuum inducing melted CuCr25 alloy. |
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| Keywords: | CuCr25 alloy aging treatment microhardness electric conductivity |
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