| 余宁,赵怡,李娜,陈小红.热处理工艺对铜合金性能的影响[J].有色金属材料与工程,2023,44(1):1-6. |
| 热处理工艺对铜合金性能的影响 |
| Effect of heat treatment process on properties of copper alloy |
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| DOI：10.13258/j.cnki.nmme.2023.01.001 |
| 中文关键词: Cu-Cr-Zr合金 热处理 冷轧 维氏硬度 导电率 微观组织 |
| 英文关键词:Cu-Cr-Zr alloy heat treatment cold rolling Vickers hardness electrical conductivity microstructure |
| 基金项目:上海市高性能医疗器械材料工程中心资助项目( 20DZ2255500) |
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| 中文摘要: |
| Cu-Cr-Zr合金由于兼具良好的力学、导热、导电性能，在航天、核工业、电器、电线等领域应用广泛。加工工艺对合金的综合性能影响显著，尤其是热处理工艺和冷变形工艺。因此，探究热处理工艺(时效温度：440～560 ℃；时效时间：0～360 min)、冷轧工艺(变形量：40%，60%，80%)对Cu-Cr-Zr合金的维氏硬度和导电率的影响。结果表明：Cu-Cr-Zr合金在950 ℃固溶60 min，进行60%变形量的冷轧，480 ℃时效120 min时，可得到维氏硬度和导电率的最佳组合，维氏硬度达152±4，导电率达(83±4) %IACS。通过微观组织观察发现，经过冷轧的Cu-Cr-Zr合金内部有高密度位错，Cr析出相在Cu基体内弥散分布。 |
| 英文摘要: |
| Cu-Cr-Zr alloy is widely used in aerospace, nuclear industry, electrical appliances, wires and other fields due to its good mechanical, thermal and electrical properties. The processing technology has a significant impact on the comprehensive properties of the alloy, especially the heat treatment process and cold deformation process. Therefore, the effects of heat treatment processes (aging temperature: 440-560 ℃, aging time: 0-360 min) and cold rolling deformation processes (deformation rate: 40%, 60%, 80%) on the hardness and electrical conductivity of Cu-Cr-Zr alloy were investigated. The results show that the Cu-Cr-Zr alloy has the best combination of Vickers hardness and electrical conductivity after solution at 950 ℃ for 60 min, cold rolling with 60% deformation and aging at 480 ℃ for 120 min, the Vickers hardness reaches 152 ±4, and the electrical conductivity reaches (83 ±4) %IACS. Through the observation of microstructure, it is found that the Cu-Cr-Zr alloy after cold deformation has high density dislocations inside, and Cr precipitates are dispersed in the Cu matrix. |
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