| 冯亚雷,刘平,陈小红,周洪雷,付少利.P对Cu-Co合金组织与性能的影响[J].有色金属材料与工程,2023,44(4):19-26. |
| P对Cu-Co合金组织与性能的影响 |
| Effect of P on the microstructure and properties of Cu-Co alloy |
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| DOI：10.13258/j.cnki.nmme.2023.04.003 |
| 中文关键词: Cu-Co-P合金 力学性能 电学性能 微观组织 |
| 英文关键词:Cu-Co-P alloy mechanical properties electrical properties microstructure |
| 基金项目:国家自然科学基金资助项目（51201107） |
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| 摘要点击次数: 1803 |
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| 中文摘要: |
| 采用真空高频感应熔炼技术制备出Cu-0.24Co-0.03P、Cu-0.24Co-0.09P和Cu-0.24Co-0.13P 3种Cu-Co-P合金，并对其进行了固溶、冷变形和时效处理。通过金相显微镜观察研究了Cu-Co-P合金不同工艺条件下的组织变化，利用涡流导电仪、万能试验机和维氏硬度计测量3种合金的导电率、抗拉强度和硬度。结果表明：在500 ℃时效处理1 h条件下，Cu-0.24Co-0.03P合金、Cu-0.24Co-0.09P合金和Cu-0.24Co-0.13P合金的导电率分别为61.0、72.0 、69.0 %IACS，维氏硬度分别为144.0、151.0、150.0，抗拉强度分别为408、444、420 MPa，抗软化温度分别为470，542、505 ℃。Cu-Co-P合金具有典型的韧性断裂特征，当P质量分数为0.09%时，合金的抗拉强度达到444 MPa，伸长率达到18 %，韧窝较多，深度明显，材料的拉伸性能更加优异。 |
| 英文摘要: |
| The three Cu-Co-P alloys of Cu-0.24Co-0.03P alloy, Cu-0.24Co-0.09P alloy and Cu-0.24Co-0.13P alloy were prepared by vacuum high-frequency induction melting technology followed by solid solution, cold deformation and aging treatment processes. The microstructures of Cu-Co-P alloy under different processing conditions were studied by metallographic microscope. The electrical conductivity, tensile strength and hardness of the three kinds of alloy were measured by eddy current conductivity meter, universal testing machine and Vickers hardness tester, respectively. The results showed that after aging treatment at 500 ℃ for 1 h, the conductivities of Cu-0.24Co-0.03P alloy, Cu-0.24Co-0.09P alloy and Cu-0.24Co-0.13P alloy are 61.0, 72.0, and 69.0 %IACS; Vickers hardnesse's are 144.0, 151.0, and 150.0; tensile strengthes aree 408, 444, and 420 MPa; softening temperatures are 470, 542, and 505 ℃, respectively. Cu-Co-P alloy has typical ductile fracture features. When the mass fraction of P reaches 0.09 %, the tensile strength of the alloy reaches 444 MPa with 18% elongation. The alloy displays the enlarged dimples and excellent tensile properties. |
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