Diffusive phase transformations: Example of Fe–M alloys

Ustinovshikov, Y.; Пушкарев, Б. Е.

doi:10.1016/j.jallcom.2005.11.048

Cited by 4 publications

(1 citation statement)

References 30 publications

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“…As was noted in Ref. [38], this gave birth to the idea that each binary system is characterized by its own sign of the ordering energy, which is constant for this system at any temperature. Other methods were also used, for example, measurement of the molar volume by the stationary droplet method.…”

Section: The Technique For Determining the Sign Of The Deviations Of mentioning

confidence: 90%

A New Paradigm for Metallic Alloys in Materials Science

Ustinovshikov¹

2015

AMPC

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In the article, taking into account the phase transition "ordering-phase separation" discovered in alloys, new concepts about the diffusion phase transformations in alloys are formulated: chemical interaction between dissimilar atoms exists always in all alloys and at any temperature of heating; alloys offer a surprising and not previously known property of changing the sign of the chemical interaction between dissimilar atoms at a change of the temperature or composition of alloys; diffusion processes occurring in alloys at different temperatures depend on the sign and the absolute magnitude of the energy of the chemical interaction between dissimilar atoms. All these three concepts are analyzed in detail, by the example of Ni-based and Co-based binary alloys using experimental results obtained by transmission electron microscopy. It is shown, on these ideas, how to carry out heat treatment of alloys more rationally, what principles should underpinned in the base of the construction of phase diagrams, how the microstructures of ordering and phase separation affect some properties of alloys.

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Section: The Technique For Determining the Sign Of The Deviations Of mentioning

confidence: 90%

A New Paradigm for Metallic Alloys in Materials Science

Ustinovshikov¹

2015

AMPC

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Phase transformations in alloys of the Ni–Cr system

Ustinovshikov¹

2012

Journal of Alloys and Compounds

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The role of the atom-atomic interactions depth on the metallic nanofilms structure evolution

Andrukhova,

Lomskikh

et al. 2024

E3S Web of Conf.

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Stochastic methods of modeling slow–moving processes controlled by diffusion make it possible to analyze the order-disorder phase transitions. The features of the kinetics of these transformations can also be identified due to these methods. Most of the investigations were made for binary alloys, taking into account the interaction of atoms in the first two coordination spheres. There is evidence that in real alloys the influence of the interatomic potential trimming radius is significant. The computer simulation results from the process of isothermal annealing of a binary metal nanofilm by a vacancy mechanism at various temperatures and the extent of the interatomic potential are presented. It has been established that with an increase in the extent of interatomic interaction potential, effects similar to those of temperature disordering a ear.

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Diffusive phase transformations: Example of Fe–M alloys

Cited by 4 publications

References 30 publications

A New Paradigm for Metallic Alloys in Materials Science

A New Paradigm for Metallic Alloys in Materials Science

Phase transformations in alloys of the Ni–Cr system

The role of the atom-atomic interactions depth on the metallic nanofilms structure evolution

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