X-Ray Diffraction Study of the Reverse Martensitic Transformation In Cu-Al-Ni Shape Memory Alloy
Keywords:
Shape memory alloy, Shape memory effect, Martensitic transformation, XRD
Abstract
The paper presents an X ray diffraction study for a cooper based shape memory alloy. The behavior of CuAl13Ni4 alloy, which exhibits a peculiar property, is evaluated by structural changes. On cooling, the martensitic transformation takes place from the ordered structures to the long period two layered structure. The crystalline phase transformations of those alloys are very sensitive to the heat treatments, deformation degrees and also to the undesired aging effects. In particular, the study has been made on the CuAl13Ni4 shape memory alloy samples after being hot extruded, quenched and aged in martensitic state.
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References
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[2]. R. Zengin, S. Ozgen, M. Ceylan, 2004, Oxidation behaviour and kinetic properties of shape memory CuAlxNi4 alloys, Thermochimica Acta 414.
[3]. G Gurau, C Gurau, D Tanase, 2006, Processing Smart Wires Cu Al Ni System authors, Metal, 15th International Metallurgical & Material Conference, TANGER Ltd., Ostrava, Czech Society for New Materials and Technologies, ASM International, Czech Chapter, Czech Metallurgical Society, VSB-Technical University, Ostrava.
[4]. H. Morawiec, J. Lelatko, D, Stroz, Gila, 1999, Structure and properties of melt-spun Cu-Al-Ni shape memory alloys, Met Sci Eng, A273-275.
[5]. V. Recarte, J.I. Perez-Landazabal, A. Ibarra, M.L. No, J. San Juan, 2004, High temperature β phase decomposition process in a Cu-Al-Ni shape memory alloy, Mat.Sci.Eng. A378.
[6]. R.Gastien, C.E.Corbellani, M.Sade Thermomechanical aspects of martensitic transformations in CuAlNi single crystals”.
[7]. Paula, J.P.H.G. Canejo, R.M.S. Martins, F.M. Braz Fernandes, 2004, “Effect of thermal cycling on the transformation temperature ranges of Ni-Ti shape memory alloy”- A.S., Mat.Sci. Eng., A378.
[8]. A. Aydgdu, Y. Aygdogdu, O. Adiguzel, 2004, Long-term ageing behaviour of martensite in shape memory Cu-Al-Ni alloys, Journal of materials Processing Technology 153/154.
Published
2008-11-15
How to Cite
1.
GURAU C, GURAU G, FERNANDES FMB. X-Ray Diffraction Study of the Reverse Martensitic Transformation In Cu-Al-Ni Shape Memory Alloy. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Nov.2008 [cited 12Nov.2024];31(2):37-0. Available from: https://gup.ugal.ro/ugaljournals/index.php/mms/article/view/3099
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