| 詹新伟,杜吉康,刘文,刘科杰,陈世康,周洪雷.Ce对Cu-0.4Mg-xCe合金组织和性能的影响[J].有色金属材料与工程,2023,44(1):7-14. |
| Ce对Cu-0.4Mg-xCe合金组织和性能的影响 |
| Effect of Ce on microstructure and properties of Cu-0.4Mg-xCe alloy |
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| DOI：10.13258/j.cnki.nmme.2023.01.002 |
| 中文关键词: Cu-0.4Mg-xCe合金 软化温度 抗拉强度 维氏硬度 |
| 英文关键词:Cu-0.4Mg-xCe alloys softening temperature tensile strength Vickers hardness |
| 基金项目:中国铁道科学研究院集团有限公司基金资助项目（2021YJ220） |
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| 中文摘要: |
| 通过在Cu-Mg合金中添加Ce制备Cu-0.4Mg-xCe (x=0, 0.1, 0.2, 0.3)合金。采用扫描电子显微镜（scanning electron microscope，SEM）、透射电子显微镜（transmission electron microscope，TEM）、拉伸试验机和电导率测试仪等设备对Cu-0.4Mg-xCe 进行表征。结果表明，Ce能明显降低Cu-0.4Mg-xCe合金的晶粒尺寸，净化Cu基体。Ce的质量分数超过0.2%后，会出现Ce的化合物，Cu-0.4Mg-xCe合金的塑性和导电率降低。Cu-0.4Mg-0.2Ce合金的综合性能最优，退火处理后，其维氏硬度、抗拉强度、导电率、软化温度分别为 213，548 MPa， 75.6 %IACS，430 ℃。 |
| 英文摘要: |
| The Cu-0.4Mg-xCe (x=0, 0.1, 0.2, 0.3) alloys were prepared by adding Ce in Cu-Mg alloy. Cu-0.4Mg-xCe were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), tensile testing machine, conductivity tester and other equipment. The results show that Ce can significantly reduce the grain size of the alloy and purify the Cu matrix. When the mass fraction of Ce exceeds 0.2 %, Ce compounds appear, and the plasticity and electrical conductivity of the Cu-0.4Mg-xCe alloys are reduced. When the mass fraction of Ce is 0.2%, the comprehensive properties of the alloy are the best. After annealing treatment, the Vickers hardness, the tensile strength, the electrical conductivity and the softening temperature of the Cu-0.4Mg-0.2Ce alloy are 213, 548 MPa, 75.6 %IACS and 430 ℃, respectively. |
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