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The martensitic transformation: mechanisms and crystallography
Philosophical Magazine A, 2002Abstract The atom movements during the martensitic transformation are described by a combination of two shears: a long-wave primary and a secondary shuffle type shear which occur simultaneously. The primary and part of the secondary shear are equivalent to the Bain distortion, and the rest of the secondary shear corresponds to the lattice invariant ...
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The nature of martensitic transformations
Materials Science and Engineering, 1979Abstract Theoretical concepts are described which explain the structural and kinetic peculiarities of martensitic transformations. A martensitic transformation is considered as a first order phase transition in solids that proceeds under conditions where the initial phase maintains metastability.
A.L. Roitburd, G.V. Kurdjumov
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The Martensitic Transformation in Cobalt
Journal of Applied Physics, 1967The properties of the fcc to hcp transformation in cobalt single-crystal whiskers have been determined. Studies of the crystallographic properties and dislocation structure using optical, standard x-ray diffraction, and high-resolution x-ray diffraction topographic techniques are herein reported.
R. T. Johnson, R. D. Dragsdorf
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On the nucleation of the martensite transformation
Nature, 1978THE standard description of the austenite–martensite transformation includes the statement that once the material reaches the martensite start temperature, or below, then the transformation occurs immediately1. Hence, if a nucleus is present in the material, then growth occurs to an extent determined by the transformation temperature.
J. M. GALLIGAN, T. GAROSSHEN
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On Martensitic Transformation Cycles
International Journal of Materials Research, 1995Complete martensitic transformation cycles require subsequent full transformation into the low temperature phase (α M , martensite) and the high temperature phase (β or Υ, for Fe-alloys austenite). Cycles can be caused by changes in temperature alone, shear stress alone, or various combinations of both.
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Martensitic Phase Transformations
1983AbstractThis chapter concentrates on very low-temperature martensitic transformations, which are of great concern for cryogenic applications and research. The principal transformation characteristics are reviewed and then elaborated. The material classes or alloy systems that exhibit martensitic transformations at very low temperatures are discussed ...
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Incompleteness of martensite transformations
Soviet Physics Journal, 1981The factors that lead to the retention of residual austenite below the temperature at the completion of the transformation are examined within the scope of the phenomenology based on the balance of motive forces in a martensite transformation.
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Weak martensitic transformations in bravais lattices
Archive for Rational Mechanics and Analysis, 1989Considered are phase transitions of crystals from the point of view of their elastic properties. The typical example the author has in mind is the BCC-FCC phase transition (body-centured to face-centured cubic) observed in Iron and called precisely a martensitic transformation.
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On the Hysteresis in Martensitic Transformations
2003The paper proposes an explanation of the hysteresis in shape memory alloys using energy minimization in nonlinear elasticity and the entropy criterion. The stored energy has two wells describing the two phases. At elongations from some interval, the minimum energy is realized on two-phase mixtures.
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