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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.44  No.9 (2003)  >  pp.1651-1654

MATERIALS TRANSACTIONS
<<Previous article Vol.44  No.9 (2003)   pp.1651 - 1654 Next article>>

Phase Equilibria in the Ni-Si-B System

Tatsuya Tokunaga1), Kazumasa Nishio2), Hiroshi Ohtani3) and Mitsuhiro Hasebe3)
1) Fukuoka Industrial Technology Center
2) Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology
3) Faculty of Engineering, Kyushu Institute of Technology


A thermodynamic study has been carried out on the Ni–Si–B ternary system, which is an important system in view of the development of Ni-base filler metals. A regular solution approximation based on the sublattice model was adopted to describe the Gibbs energy for the individual phases in the binary and ternary systems. Thermodynamic parameters for each phase have been evaluated using the available experimental information on phase boundaries and other related thermodynamic properties. Thermal analysis experiments have also been conducted on several ternary alloys to re-examine the available ternary experimental data on phase boundaries. The set of evaluated parameters in this study enables reproducible calculations of the liquidus and solidus temperatures and vertical section diagrams satisfactorily.


Keyword:
thermodynamic analysis, nickel-silicon-boron, Ni-base brazing filler metals, liquidus temperatures, phase equilibria, Calculation of phase diagrams

Received: April 22, 2003
Accepted: May 15, 2003 , Published online: September 06, 2005
Copyright (c) 2005 The Japan Institute of Metals

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