Abstract
A phase transformation model is described for variant selection during the austenite-to-martensite transformation. The model depends entirely on the presence of glide dislocations in the deformed austenite. The direct correlation between the 24 slip systems of the Bishop and Hill (B-H) crystal plasticity model and the 24 〈112〉 rotation axes of the Kurdjumov-Sachs (K-S) orientation relationship is employed. Two selection criteria, based on slip activity and permissible dislocation reactions, govern the variants that are chosen to represent the final transformation texture. The development of the model via analysis of the experimental results of Liu and Bunge is described. The model is applied to the four distinct strain paths: (1) plane strain rolling, (2) axisymmetric extension, (3) axisymmetric compression, and (4) simple shear. Experimental deformation and transformation textures were produced for comparison purposes via appropriate deformation and quenching procedures. In each case, the transformation texture predicted using the dislocation reaction model is in excellent agreement with the experimental findings.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
M. Sum and J.J. Jonas: Textures Microstr., 1999, vol. 31, pp. 187–215.
M.P. Butrón-Guillén, C.S. da Costa Viana, and J.J. Jonas: Metall. Mater. Trans., A, 1997, vol. 28A, pp. 1755–68.
J.C. Bokros and E.R. Parker: Acta Metall., 1963, vol. 11, pp. 1291–1301.
M. Humbert, F. Wagner, W.P. Liu, C. Esling, and H.J. Bunge: Proc. 8th Int. Conf. on Textures of Materials (ICOTOM 8),, TMS-AIME, Warrendale, PA, 1988, pp. 743–54.
J.R. Patel and M. Cohen: Acta Metall., 1953, vol. 1, pp. 531–38.
J.F. Bishop and R. Hill: Phil. Mag., 1951, vol. 42, pp. 414–27.
J.F. Bishop and R. Hill: Phil. Mag., 1951, vol. 42, pp. 1298–1307.
G. von Kurdjumov and G. Sachs: Z. Phys., 1930, vol. 64, pp. 325–43.
W.P. Liu and H.J. Bunge: Mater. Lett., 1991, vol. 10, pp. 336–43.
J.J. Jonas and N.J. Wittridge: Proc. 12th Int. Conf. on Textures of Materials (ICOTOM 12), Montreal, Aug. 1999, National Research Council of Canada, Chalk River, pp. 1049–58.
J.J. Jonas and N.J. Wittridge: Met. Mater. (Korea), 2000, vol. 6, pp. 211–20.
J.J. Jonas and N.J. Wittridge: Proc. of the NATO Advanced Study Institute of Multiscale Phenomena in Plasticity, J. Lépinoux, D. Mazière, V. Pontikis, and G. Saada, eds., Kluwer Academic Publishers B.V., Dordrecht, 2000, pp. 143–56.
N.J. Wittridge, J.J. Jonas, and J.H. Root: Proc. 12th Int. Conf. on Textures of Materials (ICOTOM 12), Montreal, Aug. 1999, National Research Council of Canada, Ottawa, pp. 1089–94.
M. Sum, J.J. Jonas, and J.H. Root: Proc. 12th Int. Conf. on Textures of Materials (ICOTOM 12), Montreal, Aug. 1999, National Research Council of Canada, Ottawa, pp. 761–66.
N.J. Wittridge and J.J. Jonas: Acta Mater. 2000, vol. 48, pp. 2737–49.
J. Weertman and J.R. Weertman: Elementary Dislocation Theory, Oxford University Press Inc., New York, NY, 1992.
L. Kaufman and M. Cohen: Trans. AIME, J. Met., 1956, pp. 1393–1401.
L.S. Tóth, K.N. Neale, and J.J. Jonas: Int. J. Plasticity, 1989, vol. 6, pp. 45–52.
L.S. Tóth, J.J. Jonas, P. Gilormini, and B. Bacroix: Int. J. Plasticity, 1990, 6, pp. 83–108.
F. Montheillet, M. Cohen, and J.J. Jonas: Acta Metall., 1984, vol. 32 (11), pp. 2077–89.
J. Baczynski and J.J. Jonas: Acta Mater., 1996, vol. 44 (11), pp. 4273–88.
D.A. Porter and K.E. Easterling: Phase Transformations in Metals and Alloys, Chapman and Hall, London, 1981.
P.G. McDougall and C.M. Wayman: in Martensite: A Tribute to Morris Cohen; G.B. Olson and W.S. Owen, eds., ASM INTERNATIONAL, Materials Park, OH, pp. 59–95, 1992.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Wittridge, N.J., Jonas, J.J. & Root, J.H. A dislocation-based model for variant selection during the γ-to-α′ transformation. Metall Mater Trans A 32, 889–901 (2001). https://doi.org/10.1007/s11661-001-0346-9
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11661-001-0346-9