| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1583593 | Materials Science and Engineering: A | 2007 | 8 Pages |
Abstract
The effect of heat treatment on microstructure and stress rupture life of DD32 single crystal Ni-base superalloy was investigated in this paper. Experimental results show that the more regular the cubic shape of γⲠprecipitate, the more homogeneous the size of γⲠprecipitate, the longer the creep rupture life after heat treatment. The solution temperature has more significant role on the microstructure than the hold time. The optimum solution heat treatment is 1280 °C/4 h, ac + 1290 °C/4 h, ac and the optimum high temperature ageing treatment is 1150 °C/4 h, ac. MC-type carbide in DD32 alloy is very stable during heat treatment.
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Authors
Yu Jinjiang, Sun Xiaofeng, Zhao Nairen, Jin Tao, Guan Hengrong, Hu Zhuangqi,