Hostname: page-component-848d4c4894-2xdlg Total loading time: 0 Render date: 2024-07-03T04:44:25.528Z Has data issue: false hasContentIssue false

Study of the stabilization of a Cu-Zn-Al shape memory alloy under stress

Published online by Cambridge University Press:  25 October 2002

Get access

Abstract

The influence of tensile stresses coupled with temperature cycling has been determined on a Cu-Zn-Al shape memory alloy that transforms above room temperature. It is shown that the application of increasing stresses during thermal cycles leads to an increasing martensite stabilization. The repeated thermal cycling with constant stress as well as slow temperature rates increase the stabilization. This phenomenon is attributed to a pinning of austenite-martensite interfaces by vacancies. This hypothesis is confirmed by the comparison of experiments with continuous and with stepwise temperature variations.

Type
Research Article
Copyright
© La Revue de Métallurgie, 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)