Results 221 to 230 of about 2,336,173 (297)

Martensitic Transformations in Bochum

Angewandte Chemie, 1989
Conference Reports: Martensitic transformations are first order structural phase transformations which occur in a range of crystalline solids. A recent meeting in this field in Bochum, FRG, is reviewed by N. Jost while W. Kaysser reports that Las Vegas was the scene of a conference on particle technology.
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Fluctuationless mechanism for martensitic transformations

Physical Review B, 1993
A fluctuationless mechanism for martensitic transformations consisting of the appearance and development of a lattice instability triggered by defects is presented. A number of properties associated with martensitic transformations are qualitatively explained. As a quantitative example, the theory of the displacive \ensuremath{\beta}-\ensuremath{\omega}
, Vul, , Harmon
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Thermodynamics of Thermoelastic Martensitic Transformations

Materials Science Forum, 1989
Abstract A fundamental thermodynamic equation is derived for thermoelastic martensitic transformations. It describes the mutual equilibrium between the two phases at every temperature and applied stress, taking into account internal interaction between domains, the existence of interfaces and dissipative effects associated with motion of boundaries ...
J. Ortín, A. Planes
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Martensitic Transformations in Constrained Films

Journal de Physique IV (Proceedings), 2002
The evolution of martensitic microstructure and stress in a constrained film coupled with a substrate under cooling and heating is considered. Thermodynamic analysis has done using the special phase diagrams constructed in coordinates temperature-film/ substrate misfit.
A. L. Roytburd, J. Slutsker
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Reverse transformation from martensite into austenite in a medium-Mn steel

Scripta Materialia, 2019
The mechanism of austenite reversion from martensite in a cold rolled medium‑manganese steel has been clarified. Both displacive and reconstructive transformation happens but at a specific temperature ranges.
De-han Yang, D. Wu, H. Yi
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Martensitic Phase Transformation

2020
This chapter provides a summary of basic knowledge on martensitic phase transformation in general and in steels, in particular. Besides the thermodynamic aspects of martensitic phase transformation, the different transformation path’s (direct γ to α’, direct γ to e, direct e to α’ and indirect γ to e to α’) occurring in steels are described in detail ...
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Weak martensitic transformations in bravais lattices

Archive for Rational Mechanics and Analysis, 1989
Considered 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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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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Martensitic transformation in nitinol

Metallography, 1985
Abstract Optical metallographic evidence is presented for the formation of martensite, and reversion of the martensite to the β phase in nitinol during thermal cycling and during shape memory behavior.
L.A. Middleton, N.F. Kennon, D.P. Dunne
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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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