Measurements of the ordering instability in binary alloys

Haydn Chen*, J. B. Cohen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The coherent instability temperatures for continuous ordering have been determined for various binary alloys from absolute intensities of X-ray diffuse scattering. The measured Tinstability are 358.2, 211.4 and 627.6°C for alloys of Cu3Au, Cu81.5Au18.5 and CoPt3 respectively. A comparison is made of these values to mean field theories and to recent calculations of the Cu-Au phase diagram by means of the cluster-variation method, including nearest-neighbor tetrahedra.

Original languageEnglish
Pages (from-to)603-611
Number of pages9
JournalActa Metallurgica
Volume27
Issue number4
DOIs
StatePublished - 1 Jan 1979

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