采用Gleeble-3500热模拟机进行圆柱体压缩试验,研究了新型铝青铜合金在变形温度为650~950 ℃、应变速率为0.01~5 s-1、真应变为0~0.8条件下的流变应力特征.结果表明:应变速率为0.01和5 s-1时,铝青铜合金首先出现加工硬化,流变应力达到峰值后趋于平稳,表现出动态回复的特征;应变速率为0.1和1 s-1时,合金发生了局部动态再结晶;可用Zener-Hollomon参数的双曲正弦形式来描述新型铝青铜合金热压缩变形时的流变应力行为.
参考文献
[1] | Wharton J A et al.[J].Corrosion Science,2005,47:3336. |
[2] | Al-Hashem A et al.[J].Materials Characterization,2002,48:37. |
[3] | CHEN Rui-ping,LIANG Ze-qin,ZHANG Wei-wen,ZHANG Da-tong,LUO Zong-qiang,LI Yuan-yuan.Effect of heat treatment on microstructure and properties of hot-extruded nickel-aluminum bronze[J].中国有色金属学会会刊(英文版),2007(06):1254-1258. |
[4] | 蒋树农 et al.[J].Hot Working Technology(热加工技术),2004,9:17. |
[5] | 林启权,张辉,彭大暑,林高用,杨立斌.2519铝合金热压缩变形流变应力行为[J].热加工工艺,2002(03):3-5. |
[6] | Zbigniew G .[J].Journal of Materials Processing Technology,2005,159:377. |
[7] | Prasad Y V R K et al.[J].Materials Science and Engineering A,2004,374:335. |
[8] | McQueen H J et al.[J].Journal of Materials Processing Technology,1995,53(1-2):293. |
[9] | 杨立斌 et al.[J].Hot Working Technology(热加工技术),2002,1:1. |
[10] | McQueen H J et al.[J].Journal of Materials Engineering and Performance,2001,10(02):164. |
[11] | Burachynaky V et al.[J].Met and Mat Trans,1997,28A(03):563. |
[12] | 何宜柱 et al.[J].Iron and Steel(钢铁),1999,9(34):29. |
[13] | 张红钢 et al.[J].Hot Working Technology(热加工技术),2004,1:21. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%