ДИНАМИЧЕСКИЕ СЦЕНАРИИ МАРТЕНСИТНЫХ ПРЕВРАЩЕНИЙ И ХАРАКТЕРНЫЕ МОРФОЛОГИЧЕСКИЕ ПРИЗНАКИ

Михаил Петрович Кащенко, Вера Геннадиевна Чащина, Ирина Осеровна Заплатина, В. И. Печерский

Resultado de pesquisa: Articlerevisão de pares

Resumo

Dynamic theory of spontaneous (occurring when the temperature changes) reconstructive martensitic transformations corresponds to a new paradigm for the first order phase transitions in crystalline solids. The theory is based on the representation of the initial excited (oscillatory) state. This concept replaces the concept of the existence of thermodynamically equilibrium (or quasi-equilibrium) nuclei of the new phase with respect to the rapid (supersonic) crystal growth. The initial excited state arises in certain areas of the elastic fields produced by dislocations and generates a control wave process. Consequently, the concepts of heterogeneous nucleation and subsequent growth remain but are substantially modified. The new paradigm is given a list of scenarios for the dynamic formation of martensite crystals at direct and inverse transformations. The possibility of the combining of different scenarios with using of the quickly arisen intermediate states is noted. The attention to the characteristic morphological features that are useful for the identification of dynamic scenarios of spontaneous martensitic reactions is addressed. The formation of strain -martensite is considered as the additional scenario.
Título traduzido da contribuiçãoDYNAMIC SCENARIOS OF MARTENSITIC TRANSFORMATIONS AND CHARACTERISTIC MORPHOLOGICAL FEATURES
Idioma originalRussian
Páginas (de-até)795
Número de páginas1
RevistaСовременные проблемы науки и образования
Número de emissão5
Estado da publicaçãoPublished - 2014

GRNTI

  • 53.03.00

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  • VAK List

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