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 language | English (US) |
|---|---|
| Pages (from-to) | 501-508 |
| Number of pages | 8 |
| Journal | Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties |
| Volume | 48 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 1983 |
Bibliographical note
Funding Information:One of us (J.V.) is grateful to the Ministerio de Educaci6n y Ciencia, Spain, for the grant of a fellowship.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.