Abstract–In the dynamic theory, the formation of twin martensite crystals is the result of a coordinated propagation of relatively long-wave (\(\ell \)-waves) and short-wave (s-waves) displacements. The matching condition is analyzed for the γ–α martensitic transformation in iron-based alloys, taking into account the quasi-longitudinalness of the \(\ell \)-wave carrying compression deformation. It has been shown for the first time that the previously established single-crystal effect of part of the crystals of thin-plate martensite, which arises upon cooling under the action of a strong magnetic field, can naturally be interpreted as a consequence of the formation of a degenerate structure of transformation twins.
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The authors are grateful to the participants of the XXI Winter School on Continuum Mechanics (Perm, February 18-22, 2019) and the international conference MGCTF 2019 (St. Petersburg, July 1-5, 2019) for discussing the results.
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Kashchenko, M.P., Kashchenko, N.M. & Chashchina, V.G. The Degenerate Structure of Transformation Twins and the Monocrystallinity of Part of the Thin-Plate Martensite Initiated by a Strong Magnetic Field. Mech. Solids 55, 6–15 (2020). https://doi.org/10.3103/S0025654420010112
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DOI: https://doi.org/10.3103/S0025654420010112