Dynamic model of supersonic martensitic crystal growth

Autor:	V. G. Chashchina, M. P. Kashchenko
Rok vydání:	2011
Předmět:	Condensed Matter::Materials Science Wavelength Materials science Condensed matter physics Excited state Martensite General Physics and Astronomy Non-equilibrium thermodynamics Supersonic speed Crystal growth Electron Dislocation
Zdroj:	Physics-Uspekhi. 54:331-349
ISSN:	1468-4780 1063-7869
DOI:	10.3367/ufne.0181.201104a.0345
Popis:	The basic features of martensitic transformations are reviewed using the fcc-bcc (bct) transformation in iron alloys as an example. Supersonic crystal growth is believed to be due to a master wave process initiated by an excited (oscillatory) state that arises in the elastic field of a dislocation. Topics discussed include the mechanism by which nonequilibrium electrons generate (amplify) master waves; the optimum range of parameters for wave generation; the dependence of the transformation onset temperature on the polycrystal size; and the formation of transformation twins due to the coordinated action of relatively short and relatively long wavelength waves. Future research prospects are briefly discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::48f11edb063c571e5eec9390c0887b79 https://doi.org/10.3367/ufne.0181.201104a.0345 Zobrazit plný text záznamu