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