采用真空熔炼、氩气保护下拉式连续定向凝固方法制备了Cu-12%Al(质量分数)合金线材, 研究了工艺参数对凝固成形过程的影响, 分析了连续定向凝固线材的组织性能. 结果表明: 当熔体温度1250℃、下拉速度9 mm/min、冷却水量900 L/h时, 可以连续稳定成形直径6 mm、表面较光滑、具有单晶组织的Cu-12%Al合 线材, 其延伸率达到19.7%, 弹性模量达到167.9 GPa, 电导率达到22.23% (IACS), 具有优良的综合性能.
Cu-12wt%Al alloy wires were prepared by vacuum melting and argon-shield vertical continuous unidirectional solidification (OCC) process. Effects of process parameters on the solidification forming were investigated; the microstructure and properties of the wires fabricated by OCC process were analyzed. The results showed that Cu-12wt%Al alloy wires, 6mm in diameter, with smooth surface and single crystal, can be continuously and stably fabricated under melting temperature 1250℃, drawing speed 9mm/min, cooling water volume 900L/h. The Cu-12wt%Al alloy wire with elongation 19.7%, Young’s modulus 167.9GPa and conductivity 22.23%IACS shows an excellent combination property.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] | |
| [8] | |
| [9] | |
| [10] | |
| [11] | |
| [12] | |
| [13] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%