Stress Determination during the Mechanically-Induced Martensite Phase Transformation in the Superelastic Alloy CuAlBe by Neutron Diffraction


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This paper focuses on the study of the superelastic behavior associated to the stress induced martensite transformation in a Cu-12.5%Al-0.5%Be [wt. %] shape memory alloy. Neutron diffraction was used to track the evolution of stress in the (β1) austenitic phase during the onset of the stress-induced martensite phase change. A thin flat and a cylindrical specimen was analyzed, allowing us firstly to evaluate the stress evolution in the austenite phase during martensitic transformation with laboratory X-ray and neutron diffraction and secondly to compare differences between methods (sin2ψ, principal stress) for in-situ neutron diffraction experiments.



Materials Science Forum (Volumes 524-525)

Edited by:

W. Reimers and S. Quander






B. Malard et al., "Stress Determination during the Mechanically-Induced Martensite Phase Transformation in the Superelastic Alloy CuAlBe by Neutron Diffraction", Materials Science Forum, Vols. 524-525, pp. 905-910, 2006

Online since:

September 2006




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