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Experimental investigation and thermodynamic calculation in the Ag–Bi–Ni and Cu–Bi–Ni systems

Published online by Cambridge University Press:  31 January 2011

X.J. Liu*
Affiliation:
Department of Materials Science and Engineering, College of Materials, and Research Center of Materials Design and Applications, Xiamen University, Xiamen 361005, People's Republic of China
Kiyohito Ishida
Affiliation:
Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan
*
a) Address all correspondence to this author. e-mail: [email protected]
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Abstract

The phase equilibria at 300, 400, 500, and 600 °C in the Ag–Bi–Ni system and 300, 400, and 500 °C in the Cu–Bi–Ni system were experimentally determined by metallography and electron probe microanalysis on equilibrated alloys and diffusion couples. Differential scanning calorimetry was used to measure the temperatures of phase transformations. All the experimental results show that the solubilities of the ternary elements of the binary intermetallic compounds in the Ag–Bi–Ni system are limited. However, the binary intermetallic compounds have some solubilities of the ternary elements in the Cu–Bi–Ni system. No ternary intermetallic compound was found in the Ag–Bi–Ni and Cu–Bi–Ni systems. On the basis of the determined results, the phase equilibria in the Ag–Bi–Ni and Cu–Bi–Ni systems were thermodynamically assessed, and reasonable agreement between the calculated results and experimental data was obtained.

Type
Articles
Copyright
Copyright © Materials Research Society 2009

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