Assessment of the diffusional mobilities in fcc Ni-Nb and fcc Ni-Mo alloys
Date
2012-09Author
Liu, X. J.
刘兴军
Hu, H. H.
Han, J. J.
Lu, Y.
Wang, C. P.
王翠萍
Collections
- 材料学院-已发表论文 [2404]
Abstract
The atomic mobilities of the fcc Ni-Nb and Ni-Mo binary system have been assessed on the basis of the available kinetic information and given as functions of temperatures and composition in the CALPHAD format using the DICTRA software package in this work. Good agreement between the calculated and reported experimental diffusion coefficients is obtained. By using optimized mobility parameters, the concentration profiles of the diffusion zone in the binary Ni-Nb and Ni-Mo diffusion couples can be predicted. The assessed atomic mobility parameters are an important part of the construction of mobility database in Ni based alloys, and are also useful in designing high-temperature Ni-based alloy. (C) 2012 Published by Elsevier Ltd.
Citation
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY,2012(38):140-145URI
http://dx.doi.org/10.1016/j.calphad.2012.05.003WOS:000309309800017
https://dspace.xmu.edu.cn/handle/2288/14660