摘要
The effects of aging processes on hardness properties and electric conductivity have been studied in a Cu-0.7Cr-0.13Zr alloy. Aging precipitation is dealt with by transmission electron microscopy (TEM). After solid solution treatment and aging at 500°C for 6 h, the hardness and electric conductivity can be 141 HV and 76%IACS respectively. The expanded dislocation and the coherent dispersion strengthening are proved to be the major factors contributed to the improvement of hardness of the alloy. After aging at 550°C for 2 h, hardness and electric conductivity are 126 HV and 77%IACS respectively. Precipitates are still small but not coherent with matrix. The optimum aging properties are hardness 134-141 HV and electric conductivity 72%-76%IACS at 500°C for 4-6 h.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 630-632 |
| 页数 | 3 |
| 期刊 | Cailiao Kexue yu Gongyi/Material Science and Technology |
| 卷 | 12 |
| 期 | 6 |
| 出版状态 | 已出版 - 12月 2004 |