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.

PACS: 63.20.−e, 64.70.K−, 81.30.Kf (all) DOI: 10.3367/UFNe.0181.201104a.0345 URL: https://ufn.ru/en/articles/2011/4/a/ 000294814800001 2-s2.0-79960913909 2011PhyU...54..331K Citation: Kashchenko M P, Chashchina V G "Dynamic model of supersonic martensitic crystal growth" Phys. Usp. 54 331–349 (2011) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Received: 17th, July 2010, revised: 15th, September 2010, accepted: 21st, September 2010 Оригинал: Кащенко М П, Чащина В Г «Динамическая модель сверхзвукового роста мартенситных кристаллов» УФН 181 345–364 (2011); DOI: 10.3367/UFNr.0181.201104a.0345