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Stress analysis of martensitic transformation in Cu–Al–Be polycrystalline and single-crystalline shape memory alloy

✍ Scribed by B Kaouache; S Berveiller; K Inal; A Eberhardt; E Patoor

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
176 KB
Volume
378
Category
Article
ISSN
0921-5093

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✦ Synopsis

The aim of this study is to analyze the martensitic transformation in a shape memory alloy during a superelastic loading, focusing on internal strains, stresses and phases fractions. The behavior of the austenite phase is studied by X-ray diffraction stress analysis during in situ tensile test at room temperature. Both single-crystal and polycrystal samples have been investigated. The results are discussed with the aim to correlate the microstructural variations with the local stress state evolution in the austenitic phase while variants of martensite form and develop during a superelastic loading.

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