Structural and Morphological Investigations on Shape Memory CuZnAl Alloys

• Authors: R. Zengin , N. Kayal
• Languages of publication: EN

Abstracts

EN

Macroscopic, structural and morphological features of shape memory CuZnAl alloys were examined by elongation parameter measurement, X-ray diffraction and optical metallography. It has been seen that shape initiating temperature (T_{z}) is greater than austenite start temperature (A_{s}). According to the X-ray diffraction, it has been defined that transformation happened from austenite phase to martensite phase as L2_1 → M18R and martensite crystal lattice has been in monoclinic structure. In metallographic observations the grain structures were observed, then plate martensites, V-type martensite structures, twin-like bands, precipitation phases were found. In addition, it has been observed that α-sediment phase has occurred in specimens with ageing at austenitic phase condition.

Keywords

EN

62.20.fg

Discipline

• 62.20.fg: Shape-memory effect; yield stress; superelasticity

• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 4
• Pages: 619-622

Dates

published

2010-10

received

2010-03-09

(unknown)

2010-05-28

Contributors

author

R. Zengin

• Faculty of Education, Division of Science Teaching, University of Firat, 23169 Elazig, Turkey

author

N. Kayal

• Faculty of Education, Division of Science Teaching, University of Firat, 23169 Elazig, Turkey

References

• 1. K. Otsuka, K. Shimizu, Int. Metals Rev. 31, 93 (1986)
• 2. D.W. Roh, E.S. Lee, Y.G. Kim, Metall. Mater. Trans. A 23, 2753 (1992)
• 3. N. Haberkorn, F.C. Lovey, A.M. Condó, J. Guimpel, Mater. Sci. Eng. B 170, 5 (2010)
• 4. T. Saburi, S. Nenno, S. Kato, K. Takata, J. Less Common Metals 50, 223 (1976)
• 5. G. Guénin, in: Proc. Europ. Conf. on Martensitic Transformation in Science and Technology, Eds. E. Hornbogen, N. Jost, DGM Inf. Verlag, Oberursel, Germany, 1989, p. 39
• 6. R. Stalmans, J.V. Humbeeck, L. Delaey, Acta Metall. Mater. 40, 2921 (1992)
• 7. J. Loughlan, S.P. Thompson, H. Smith, Composite Struct. 58, 319 (2002)
• 8. C.M. Friend, Scr. Metall. 20, 995 (1986)
• 9. V. Dia, L.G. Bujoreanu, S. Stanciu, C. Munteanu, Mater. Sci. Eng. A 481, 697 (2008)
• 10. P. Tautzenberger, G. Rau, et al. in: Proc. Europ. Conf. on Martensitic Transformation in Science and Technology, Eds. E. Hornbogen, N. Jost, DGM Inf. Verlag, Oberursel, Germany, 1989, p. 213
• 11. N. Kayalı, S. Özgen, O. Adıgüzel, J. Mater. Proc. Technol. 101, 245 (2000)
• 12. N. Kayalı, S. Özgen, O. Adıgüzel, Mater. Res. Bull. 32, 569 (1997)
• 13. K. Adachi, J. Perkins, Metall. Mater. Trans. A 17, 945 (1986)
• 14. N. Kayalı, R. Zengin, O. Adıgüzel, Metall. Mater. Trans. A 31, 349 (2000)
• 15. Z. Nishiyama, Martensitic Transformation, Academic Press, New York 1978, p. 115
• 16. C. Shuchuan, T.Y. Hsu, Y. Fan, Z. Jihau, in: Proc. ICOMAT '92, Ed. J. Perkins, Monterey Institute for Advanced Studies, Monterey, USA 1992, p. 599
• 17. A.K. Bhuniya, P.P. Chattopadhyay, S. Datta, M.K. Banerjee, Mater. Sci. Eng. A 391, 34 (2005)
• 18. Y. Xu, S. Shimizu, et al. Acta Mater. 45, 1503 (1997)

Identifiers

DOI

10.12693/APhysPolA.118.619