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Diffusion and Atomic Mobilities in fcc Ni-Sn Alloys

Wang, J. ; Leinenbach, C. ; Liu, H. ; Liu, L. ; Roth, M. ; Jin, Z.

In: Journal of Phase Equilibria and Diffusion, 2010, vol. 31, no. 1, p. 28-33

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    Titre
    • Diffusion and Atomic Mobilities in fcc Ni-Sn Alloys
    Auteur
    • Wang, J.. EMPA, Swiss Federal Laboratories for Materials Testing and Research, Laboratory for Joining and Interface Technology, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland
    • Leinenbach, C.. EMPA, Swiss Federal Laboratories for Materials Testing and Research, Laboratory for Joining and Interface Technology, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland
    • Liu, H.. School of Materials Science and Engineering, Central South University, 410083, Changsha, Hunan, P. R. China
    • Liu, L.. School of Materials Science and Engineering, Central South University, 410083, Changsha, Hunan, P. R. China
    • Roth, M.. EMPA, Swiss Federal Laboratories for Materials Testing and Research, Laboratory for Joining and Interface Technology, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland
    • Jin, Z.. School of Materials Science and Engineering, Central South University, 410083, Changsha, Hunan, P. R. China
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Journal of Phase Equilibria and Diffusion, 2010, vol. 31, no. 1, p. 28-33. Springer US; http://www.springer-ny.com
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:320416
    Summary
    The composition-distance profiles in face-centered cubic (fcc) Ni-Sn alloys at 1173, 1223, 1273, and 1323K were measured by means of electronic probe microanalysis (EPMA) using Ni/Ni-7.3at.%Sn diffusion couples. Based on the available thermodynamic information and various experimental diffusion coefficients, the atomic mobilities of Ni and Sn in fcc Ni-Sn alloys were assessed as a function of temperature and composition in terms of the CALPHAD method using the DICTRA® software package. Optimized mobility parameters are presented. Comparisons between the calculated and measured diffusion coefficients show that most of the experimental information can be reproduced reasonably. The obtained mobility parameters can also predict satisfactorily the composition-distance profiles of the Ni/Ni-7.3at.%Sn diffusion couples determined in the present work