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EMBRYONIC FLUCTUATIONS AT MARTENSITIC PHASE TRANSFORMATION
EMBRYONIC FLUCTUATIONS AT MARTENSITIC PHASE TRANSFORMATIONopenaire
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A review on phase field modeling of martensitic phase transformation
Computational Materials Science, 2013In the last few decades, the phase field method has shown tremendous capabilities of predicting microstructure evolutions at the mesoscale scale. This method was widely used for modeling martensitic phase transformation, where the displacive character was a challenging problem for the counterpart sharp interface approach.
Haitham El Kadiri +2 more
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IMPACT OF THE ORIGINATING MARTENSITIC PHASE ON THE CHARACTER OF MARTENSITIC PHASE TRANSFORMATION
Anali PAZU, 2023In the article, we discuss the influence of the locally perturbed order parameter in austenitic-martensitic phase transformation on the character of the phase transformation. We choose Landau type mean field approximation which covers the most important features of the proposed theoretical description.
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Phase Transformations of Nanocrystalline Martensitic Materials
MRS Bulletin, 2009AbstractThe physical phenomena and engineering applications of martensitic phase transformations are the focus of intense ongoing research. The martensitic phase transformation and functional properties such as the shape-memory effect and superelasticity are strongly affected by the crystal size at the nanoscale.
Waitz, Thomas +3 more
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Adaptive phase formation in martensitic transformation
Physical Review B, 1991It is shown that an appearance of an intermediate martensite phase called adaptive martensite may be expected if the surface energy of a boundary between two orientational variants of the normal martensite phase is very low and the typical lattice-mismatch-related elastic energy is high.
, Khachaturyan +2 more
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International Journal of Materials Research, 2011
Abstract A generalization of the phase-field theory for multivariant martensitic phase transformations is suggested that allows one to vary martensite–martensite interface energy independent of energy for austenite–martensite interfaces. The finite element method is utilized to solve the coupled phase-field and elasticity equations. Width and energy of
Valery I. Levitas, Mahdi Javanbakht
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Abstract A generalization of the phase-field theory for multivariant martensitic phase transformations is suggested that allows one to vary martensite–martensite interface energy independent of energy for austenite–martensite interfaces. The finite element method is utilized to solve the coupled phase-field and elasticity equations. Width and energy of
Valery I. Levitas, Mahdi Javanbakht
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Martensitic Phase Transformation
2020This 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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The Effect of Pressure on Martensitic Phase Transformations
Advances in Science and Technology, 2012Stability of the crystal structure is determined by the competition between attractive and repulsive interatomic forces. Using many-body exponential potentials it can be shown that the bcc structure corresponding to austenitic phases is more stable for low values of the q-parameter characterising the attractive forces for a fixed value of the p ...
Vaclav Paidar +2 more
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Martensitic Phase Transform Ation
2003Abstract We are interested in developing a continuum theory for materials that undergo the martensitic phase transformation. In particular, we are interested in understanding the origin and the nature of the microstructure that is observed in these materials. In this chapter, we introduce the basic concepts of the theory.
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Martensitic phase transformation and lattice dynamics of fcc cobalt
Physical Review B, 1996The phonon dispersion of the high-temperature fcc phase of pure cobalt has been measured by inelastic neutron scattering at 833 K. Transverse phonon branches were measured above and below the Martensitic hcp-fcc transformation in order to learn about an influence of lattice dynamics, if any.
, Strauss +6 more
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