Results 231 to 240 of about 14,153 (276)

BIFURCATION AND STABILITY OF MARTENSITIC TRANSFORMATION DYNAMICS

International Journal of Bifurcation and Chaos, 2008
In this paper, we have studied the mathematical properties and their physical implications of a system of nonlinear ordinary differential equations with two variables and six parameters, which was proposed to model the martensitic transformation of shape memory alloys.
Lihua Jin, Yongzhong Huo
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The Martensitic Transformation in Cobalt

Journal of Applied Physics, 1967
The 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, 1978
THE 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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Isothermal martensitic transformations

Uspekhi Fizicheskih Nauk, 2005
Martensitic transformations have long been considered most characteristically athermal — in the sense that they develop, with changing temperature, at a tremendous temperature-independent rate and cease to occur at isothermal conditions. Over the past decades, however, isothermal martensitic transformations (IMTs), which develop at low temperatures for
Valentin A Lobodyuk, Emmanuil I Estrin
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The thermodynamics of martensitic transformation

Metallurgical Transactions, 1971
The thermodynamic approach to the understanding of martensitic transformations can provide insight into the mechanism of transformation, serve as a generalization technique among the alloying systems, and as a framework for the synthesis of data on kinetic, structural, crystallographic, and other aspects of the transformation.
J. S. Pascover, S. V. Radcliffe
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On Martensitic Transformation Cycles

International Journal of Materials Research, 1995
Complete 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 Transformation

2023
Xu Zuyao, Xu Kuangdi
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Martensitic and “normal” transformations

Bulletin of the Russian Academy of Sciences: Physics, 2009
An analysis of the experimental data shows that various structural kinetic forms of polymorphic transformations (from low-temperature athermal martensitic to high-temperature thermally activated “normal”) are due to the superposition of athermal lattice rearrangement (athermal martensitic transformation) and relaxation processes.
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Incompleteness of martensite transformations

Soviet Physics Journal, 1981
The 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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Martensitic Phase Transformations

1983
AbstractThis 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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