(1. 江西省科学院 江西省铜钨新材料重点实验室，南昌 330029；
2. 中南大学 材料科学与工程学院，长沙 410083)
摘 要: 采用超导强磁场真空热处理炉对Cu-14Fe-0.1Ag合金进行不同的时效处理，利用扫描电子显微镜、能谱仪、维氏硬度计及数字微欧计研究了强磁场时效对合金微观组织、固溶度、力学性能及导电性能的影响。结果表明：在Cu-14Fe-0.1Ag合金的时效处理过程中，施加强磁场可促进Fe枝晶的球化，随着磁场强度的增加，Fe枝晶的球化效应更加明显，Fe在Cu基体中的固溶度逐渐减小；在10 T强磁场下，合金的较佳时效温度为500 ℃；在10T和500 ℃温度下时效1 h，可获得强度和导电性匹配良好的合金材料。
关键字: Cu-Fe-Ag合金；强磁场；时效处理；组织；性能
（1. Jiangxi Key Laboratory for Advanced Copper and Tungsten Materials,
Jiangxi Academy of Sciences, Nanchang 330029, China;
2. School of Materials Science and Engineering, Central South University, Changsha 410083, China）
Abstract:The aging treatment of Cu-14Fe-0.1Ag alloy was investigated by a vacuum heat treating furnace under a high magnetic field. The microstructure, solid solubility of Fe in Cu matrix, mechanical and electrical properties were investigated by scanning electron microscope, energy spectrometer, Vickers hardness tester and micro-ohmmeter. The results indicate that high magnetic field promotes the spheroidization of Fe dendrites; the spheroidization intensifies and the solid solubility decreases with the magnetic induction intensity increasing; the optimum temperature of aging treatment is 500 ℃ under a high magnetic field of 10 T; and the Cu-14Fe-0.1Ag alloy has a good combination property of strength and conductivity after aging treatment under 10 T at 500 ℃ for 1 h.
Key words: Cu-Fe-Ag alloy; high magnetic field; aging treatment; microstructure; property
