Thermodynamic calculation on the miscibility gap of fcc-Al based solid solution in the Al-Zn-Cu system

L. L. Dai, H. X. Li, Y. P. Ren

Research output: Contribution to journalArticle

4 Scopus citations


The complete miscibility gap of fcc solid solution has been obtained by thermodynamic calculation in the Al-Zn-Cu ternary system by means of SSOL data. It is clearly indicated that its shape should be connective tunnel space, transforming continuously from Al-Zn side to Al-Cu side, not bell-shaped space as considered previously. Moreover, it has been also shown that there is metastable miscibility gap of fcc solid solution in Al-rich corner of Al-Cu binary system. Its top temperature is about 500 °C and the corresponding composition is around 13.5 at.% Cu.

Original languageEnglish (US)
Pages (from-to)144-146
Number of pages3
JournalJournal of Alloys and Compounds
Issue number1-2
StatePublished - Jun 10 2009
Externally publishedYes



  • Al-Zn-Cu system
  • Miscibility gap
  • Thermodynamic calculation

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this