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.

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Periodical:

Materials Science Forum (Volumes 524-525)

Edited by:

W. Reimers and S. Quander

Pages:

905-910

DOI:

10.4028/www.scientific.net/MSF.524-525.905

Citation:

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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$35.00

[1] K. Otsuka, C.M. Wayman. In K. Otsuka, C.M. Wayman (Eds. ), Shape Memory Alloys, Cambridge University Press, Cambridge (1998), p.27.

[2] K. Bhattacharya, R.V. Kohn. Acta Mater. 44 (1996), p.529.

[3] E. Patoor, A. Eberhardt, M. Berveiller. J. Phys. IV (France) 6 (1996), p.277.

[4] P. Sittner, P. Lukas, D. Neov, M.R. Daymond, V. Novak, G.M. Swallowe. Stress-induced martensitic transformation in Cu-Al-Zn-Mn polycrystal investigated by two in-situ neutron diffraction techniques. Mater. Science and Eng. A324 (2002), p.225.

DOI: 10.1016/s0921-5093(01)01316-8

[5] F. Moreau. Etude par diffraction des rayons X des effets du cyclage pseudo-élastique de l'alliage à mémoire de forme Cu-Al-Be. PhD, ISGMP, University of Metz, (1998).

[6] G. Bruno, T. Pirling, S. Rowe, W. Hutt, P.J. Withers, C. Carlile. Proc. SPIE 4785 (2002), p.64.

[7] Y. Gao. Etude de la transformation martensitique d'un alliage à mémoire de forme Cu-Al-Be à grains fins par rayons X et neutrons. Projet de Fin d'étude de l'ENSAM Metz (2005).

[8] J. Saroun., T. Pirling, R.B. Rogge. Optimization of a focusing monochromator for neutron strain-scanning diffractometer. Applied Physics A: Materials Science and Processing 74 (SUPPL. II), (2002), p.1489.

DOI: 10.1007/s003390201433

[9] E. Macherauch, P.Z. Müller. Angew. Phys., 13 (1961), p.305.

[10] R. Berrahmoune. Thesis LPMM / ENSAM Metz (in prep. ).

[11] E. Arzt. «Size effect in materials due to microstructural and dimensional constraints: a comparative review ». Acta material, vol. 46 (1998), p.5611.

DOI: 10.1016/s1359-6454(98)00231-6

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