Interdiffusion in the Face-Centered Cubic Phase of the Co-Al-W-Ta System Between 1090 and 1240 °C

被引：0
作者：
A. Epishin
A. Chyrkin
G. Nolze
J. Midtlyng
H. M. Mayer
N. Petrushin
W. Reimers
机构：
[1] Technical University of Berlin,Institute of Materials Science and Technologies
[2] Taras Shevchenko National University of Kyiv,Department of Chemistry
[3] Forschungszentrum Jülich GmbH,Energy and Climate (IEK
[4] Federal Institute for Materials Research and Testing (BAM),2)
[5] All-Russian Scientific Research Institute of Aviation Materials (VIAM),undefined
来源：
Journal of Phase Equilibria and Diffusion | 2018年 / 39卷
关键词：
alloys; interdiffusion; modeling;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Interdiffusion of Al, W, Ta and Co in a Co-base alloy at temperatures between 1090 and 1240 °C has been investigated. The interdiffusion coefficients were found to be close to those reported for these elements in Ni-base alloys. Combining the diffusion simulation software DICTRA with the Ni-base diffusion databases TCNi5 and MobNi3, the interdiffusion profiles of Co, Al W, and Ta were modeled for Co9Al8W2Ta/Co diffusion couples annealed at different temperatures and for different times. The results show that interdiffusion in the Co-Al-W-Ta alloys can be modeled reasonably well using the available commercial databases for thermodynamics and kinetics of Ni-base systems.
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页码：176 / 185
页数：9
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