| 刘婉容,王金海,田军.形变热处理对Cu0.3Cr0.1Zr合金上引铸坯杆组织性能的影响[J].有色金属材料与工程,2015,36(1):9-13. |
| 形变热处理对Cu0.3Cr0.1Zr合金上引铸坯杆组织性能的影响 |
| Effects of Thermo-mechanical Heat Treatment on Microstructure and Properties of Pullingmethod Cu-0.3Cr-0.1Zr Alloy |
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| DOI：10.13258/j.cnki.snm.2015.01.002 |
| 中文关键词: Cu-0.3Cr-0.1Zr合金 形变热处理 微观组织 抗拉强度 导电率 |
| 英文关键词:Cu-0.3Cr-0.1Zr alloy thermo-mechanical heat treatment microstructure tensile strength electrical conductivity |
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| 中文摘要: |
| 通过对上引Cu-0.3Cr-0.1Zr合金固溶处理、冷拉拔以及随后的时效处理工艺,研究冷拉拔形变及时效对材料力学性能、导电性能及组织结构的影响规律.结果表明:时效前的冷拉拔变形能提高Cu-0.3Cr-0.1Zr合金的力学性能而保持较高的导电率;合金在950 ℃固溶1 h后,经70%冷拉拔变形和500 ℃时效4 h,合金抗拉强度和导电率分别达到了418 MPa和87 %IACS;时效合金组织转变过程为:固溶体→G.P.区→Cr+Cu4Zr,析出相对位错运动的阻碍是合金强化的重要机制. |
| 英文摘要: |
| The effects of thermo-mechanical heat treatment on microstructure and properties of Cu-0.3Cr-0.1Zr alloy were studied by means of solid solution treatment and cold-drawing followed by ageing treatments. The aging temperature,time and reduction ratios of cold-drawing affect the mechanical and electrical properties of Cu-0.3Cr-0.1Zr alloy. The result shows that the cold-drawing could improve the mechanical properties and keep the electrical properties at a high level. In optimum treatment,the tensile strength and electrical conductivity reached 418 MPa and 87%IACS respectively. The microstructure transformation of Cu-0.3Cr-0.1Zr alloy is solid solution→G.P. zone→Cr+Cu4Zr. The pinning effect of precipitates on dislocations contribute to the improvement of strength in pullingmethod Cu-0.3Cr-0.1Zr alloy. |
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