Promising variants of initiation of martensitic γ–α transformation in iron alloys by a couple of elastic waves

Abstract

Variants of initiation of growth of crystals of a-martensite by couplcs of clastic waves propagating in direc­tions 〈001〉γ and 〈110〉γ in singles crystals of Fe3 INi are suggested. The dynamic theory is used to show that the expected orientations of habit planes {110}γ, {001}γ and {559}γ differ from the typical {31015}γ. Possible features of tetragonality of martensite crystals arc discussed. The power of the sources of ultrasound required for initiation of γ - α martensitic transformation is estimated. © 2016 Springer Science + Business Media New York.