Effect of atomic order on a martensitic transformation

A. Planes, J. Viñals, V. Torra

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

A simple model is proposed to account for the influence of the β-phase atomic order on the martensitic transformation undergone by shape-memory alloys. The dependence of the elastic constants of the high-temperature phase on atomic order is calculated within the harmonic approximation, giving rise to a coupling between order and strain in the free energy of the alloy. This coupling term is quadratic in both order parameters and leads to a quadratic dependence of the transition temperature on atomic order.

Original languageEnglish (US)
Pages (from-to)501-508
Number of pages8
JournalPhilosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Volume48
Issue number4
DOIs
StatePublished - Apr 1983

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