Coarsening Behavior of γ" Precipitate in GH169 Alloy

Dong Jianxin; Xie Xishan; Zhang Shouhua

doi:10.13374/j.issn1001-053x.1995.02.008

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Dong Jianxin, Xie Xishan, Zhang Shouhua. Coarsening Behavior of γ' Precipitate in GH169 Alloy[J]. Chinese Journal of Engineering, 1995, 17(2): 134-138. doi: 10.13374/j.issn1001-053x.1995.02.008

Citation:

Dong Jianxin, Xie Xishan, Zhang Shouhua. Coarsening Behavior of γ" Precipitate in GH169 Alloy[J]. Chinese Journal of Engineering, 1995, 17(2): 134-138. doi: 10.13374/j.issn1001-053x.1995.02.008

Dong Jianxin, Xie Xishan, Zhang Shouhua. Coarsening Behavior of γ' Precipitate in GH169 Alloy[J]. Chinese Journal of Engineering, 1995, 17(2): 134-138. doi: 10.13374/j.issn1001-053x.1995.02.008

Citation:

Dong Jianxin, Xie Xishan, Zhang Shouhua. Coarsening Behavior of γ" Precipitate in GH169 Alloy[J]. Chinese Journal of Engineering, 1995, 17(2): 134-138. doi: 10.13374/j.issn1001-053x.1995.02.008

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Coarsening Behavior of γ" Precipitate in GH169 Alloy

doi: 10.13374/j.issn1001-053x.1995.02.008

Department of Materials Science and Engineering, USTB, Beijing 100083, PRC

Received Date: 1993-09-06
Available Online: 2021-09-06

Abstract

Abstract

The coarsening kinetics of γ' precipitates in GH169 alloy have been studied with transmission electron microscope. The measured coarsening rates and particlesize distributions were analyzed using LSW theory. The results show that the growth behavior of γ' phase follows the time-law predictions of LSW theory of diffusioncontrolled growth. However, the actual particle-size distribution is anomalous, it could be attributed to the γ' phase special characteristic of high density dispersion precipitation and a large lattice misfit.
- diffusion,
- grain/superalloy,
- transformation