Phase stability among the α(A1), β(A2), and γ(D83) phases in the Cu-Al-X system

X. J. Liu, C. P. Wang, Ikuo Ohnuma, R. Kainuma, K. Ishida

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The phase equilibria among the α(A1), β(A2), and γ(D83) phases in the Cu-Al-X systems (X: Ti, V, Mn, Fe, Co, Ni, Zn, Sn, and Sb) at 700 and 800°C were investigated, and the effects of these alloying elements on the phase boundaries, homogeneous solid solution ranges, and tie-lines among the α, β, and γ phases were accurately determined by the diffusion couple method. The phase stabilities among α, β, and γ phases are discussed in terms of the partition coefficient. In addition, a modified Guillet's method, which is used to estimate the effect of alloying elements on microstructure, is proposed by taking into account the change of equivalent coefficient with the phase fraction, and applied to predict the effect of alloying elements on the microstructure of the Cu-Al base alloy.

Original languageEnglish
Pages (from-to)431-438
Number of pages8
JournalJournal of Phase Equilibria
Volume22
Issue number4
DOIs
Publication statusPublished - 2001 Aug 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Metals and Alloys

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