A metastable b.c.c. phase and its decomposition behavior in rapidly solidified Ni10at.%Zr and Ni8at.%Zr1at.%X alloys

G. Ghosh*, F. R. Chen, M. Chandrasekaran, L. Delaey

*Corresponding author for this work

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

A metastable b.c.c. (A2) phase with lattice parameter a = (0.280 ± 0.005) nm is obtained upon rapidly solidifying Ni10at.%Zr and Ni8at.%Zr1at.%X (X = Si, Ti, Mo) alloys. The b.c.c. phase is relatively more stable in the ternary alloys. Formation of this metastable phase and the equilibrium phases under rapid solidification conditions are discussed in terms of classical nucleation theory. Upon aging, the b.c.c. phase decomposes into equilibrium phases, the morphology of which is dependent on the aging temperature.

Original languageEnglish (US)
Pages (from-to)468-474
Number of pages7
JournalMaterials Science and Engineering A
Volume133
Issue numberC
DOIs
StatePublished - Mar 15 1991

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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