Incremental diffusion couple experiments are conducted to determine the average interdiffusion coefficient and the intrinsic diffusion coefficients of the species in the Ni 6Nb 7 (μ phase) in the Ni-Nb system. Further, the tracer diffusion coefficients are calculated from the knowledge of thermodynamic parameters. The diffusion rate of Ni is found to be higher than that of Nb, which indicates higher defect concentration in the Ni sublattice. © 2011 The Minerals, Metals & Materials Society and ASM International.
|Number of pages||5|
|Journal||METALLURGICAL AND MATERIALS TRANSACTIONS A: PHYSICAL METALLURGY AND MATERIALS SCIENCE|
|Publication status||Published - Jul 2011|
|MoE publication type||A1 Journal article-refereed|
- diffusion kinetics