| 王翠萍,乐帆程,朱家华,杨木金,杨水源,张锦彬,石田清仁,刘兴军.Cu-Fe64Ni32Co4合金显微组织及热物理性能研究[J].稀有金属材料与工程（英文）,2019,48(7):2122~2129.[Wang Cuiping,Le Fancheng,Zhu Jiahua,Yang Mujin,Yang Shuiyuan,Zhang Jinbin,K.Ishida and Liu Xingjun.Investigation on the Microstructures and Thermophysical Properties of Cu-Fe64Ni32Co4 Alloys[J].Rare Metal Materials and Engineering,2019,48(7):2122~2129.] |
| Investigation on the Microstructures and Thermophysical Properties of Cu-Fe64Ni32Co4 Alloys |
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| Received:February 02, 2018 Revised:May 04, 2018 |
| DOI： |
| Key words: CALPHAD approach Cu-Fe64Ni32Co4 microstructures thermal conductivity thermal expansion coefficients |
| Foundation item:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| Abstract: |
| Based on the CALPHAD approach and vacuum arc melting technology, the Cux(Fe0.64Ni0.32Co0.04)100-x(x=30, 45, 60, wt. %) series alloys were designed and prepared. The effects of annealing process on microstructures, thermal conductivity (TC) and thermal expansion coefficients (CTE) were investigated in these prepared alloys. The result shows that the Cu-Fe64Ni32Co4 isotropic polycrystalline alloys present two separate fcc phases (fcc Cu-rich phase and fcc (Fe, Ni, Co)-rich phase) microstructures after annealing at 600 °C and 800 °C. After annealing at 600 °C for 50 h, the CTE of the alloys ranged from 6.88 to 12.36×10-6 K-1. And TC varied from 22.91 to 56.13 W.m-1.K-1. Particularly, the TC are significantly higher than that of Invar alloy, and the CTE of Cu30(Fe0.64Ni0.32Co0.04)70 and Cu45(Fe0.64Ni0.32Co0.04)55 alloys can well match with that of semiconductor in electronic packaging. |
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