Abstract
This article reports the results of computer simulation studies of reversible, athermal martensitic transformations in idealized, two-dimensional crystals. The transformation is accomplished by se-quentially transforming elementary cells. The model accounts for the elastic strain developed during the transformation, assuming homogeneous elastic constants, negligible interfacial tension, and no external stress. The effects of frictional resistance to the transformation and plastic relaxation of the elastic strain are included in a simple way. The model is used to study the sources of hysteresis in the temperature-transformation (TT) curve and in the microstructural transformation path when the transformation is reversed. The central result is that some hysteresis is inevitable in a transformation of the type studied here. Even in the absence of friction and plastic relaxation, the transformation follows a path in which sequential elements of martensite relax the elastic strain of those that have previously formed. This causes the martensite to form in bursts and has the consequence that the reverse transformation does not reverse the path of the forward transformation. Friction and plastic relaxation increase hysteresis.
Similar content being viewed by others
References
Ping Xu, J.W. Mrris and Jr.:Metall. Trans. A, 1992, vol. 23A, pp. 2999–3012.
Ping Xu, J.W. Mrris and Jr.:Metall. Trans. A, 1993, vol. 24A, pp. 1281–94.
G.V. Kurdjumov:Zh. Tekhnich. Fiz. (Tech. Phys. USSR), 1948, vol. 18, pp. 999–1025.
G.V. Kurdjumov and L.C. Khandros:Dokl. Akad. Nauk SSSR, 1949, vol. 66, pp. 211–14.
CM. Wayman and K. Shimizu:Met. Sci. J., 1972, vol. 8, pp. 175- 83.
L. Delaey, R.V. Krishnan, H. Tas, and H. Warlimont:J. Mater. Sci., 1974, vol. 9, pp. 1521–35.
Shape Memory Effects in Alloys, J. Perkins, ed., Plenum Press, New York, NY, 1975.
Shape Memory Alloys, H. Funakubo, ed., Gordon and Breach Science Publishers, New York, NY, 1984 (translated by J.B. Kennedy).
D.P. Dunne and CM. Wayman:Metall. Trans., 1973, vol. 4, pp. 137- 45.
Y. Deng and G.S. Ansell:Acta Metall., 1991, vol. 22, pp. 1995–99.
R.V. Krishnan, L. Delaey, H. Tas, and H. Warlimont:J. Mater. Sci., 1974, vol. 9, pp. 1536–44.
G.B. Olson and M. Cohen:Scripta Metall., 1975, vol. 9, pp. 1247- 54.
G.B. Olson and M. Cohen:Scripta Metall., 1977, vol. 11, pp. 345- 47.
J. Ortin and A. Planes:Eur. Symp. on Martensitic Transformations and Shape Memory Properties, Aussois, France, 1991, pp. C4-13–C4-23.
H.C Tong and CM. Wayman:Acta Metall, 1974, vol. 22, pp. 887- 96.
A.G. Khachaturyan and G.A. Shatalov:Sov. Phys. JETP, 1969, vol. 29, pp. 557–61.
A.G. Khachaturyan:Theory of Structural Transformations in Solids, J. Wiley, New York, 1983.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Xu, P., Morris, J.W. Computer simulation of reversible martensitic transformations. Metall Mater Trans A 27, 1187–1201 (1996). https://doi.org/10.1007/BF02649857
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02649857