Diffusional and thermodynamic interactions in the Cu--Ni--Zn system at 775/sup 0/C
- Worcester Polytechnic Inst., MA
Diffusion was investigated in both ..cap alpha..(fcc) and ..beta..(bcc) phase regions of the Cu--Ni--Zn system at 775/sup 0/C with solid--solid diffusion couples and interdiffusion coefficients were determined at several compositions. Intrinsic and interdiffusion coefficients were also estimated from available data on thermodynamic activities and tracer diffusivities for ..cap alpha.. Cu--Ni--Zn alloys; and the estimated coefficients were consistent with those experimentally determined. Large off-diagonal coefficients indicating strong interactions among the diffusing species were observed and could be appreciated in terms of the compositional dependence of the thermodynamic activities of the components.
- OSTI ID:
- 6516682
- Journal Information:
- Metall. Trans., A; (United States), Journal Name: Metall. Trans., A; (United States) Vol. 8A:12; ISSN MTTAB
- Country of Publication:
- United States
- Language:
- English
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