Crystallodynamic model for selecting the orientation of twin structure boundaries during formation of a martensitic crystal

Component ratio in a layered structure formed by the controlling wave process in a metastable austenite

“…According to [1,2], the wave normals of the s-waves n s are directed along the orthogonal axes of symmetry of the fourth order. Excitation of the s-waves is associated with vibration of an individual cell shaped as an elongated rectangular parallelepiped with its edges along the <100> γ -axes.…”

“…Excitation of the s-waves is associated with vibration of an individual cell shaped as an elongated rectangular parallelepiped with its edges along the <100> γ -axes. In [2] it is reported that formation of the LS boundaries with the (110) γ orientation is ensured by a pair of s-waves with the normals n s2 = [100] γ and n s1 = -[010] γ (comparable to compressive and tensile strains) in the presence of an ℓ-wave (comparable to compressive strain) with the wave normal n 2ℓ = [cosψ sinψ 0]. The transverse size d s of an active dynamic cell (shaped as a square) according to [3] satisfies the inequality d s < λ s /2, where λ s is the s-wavelength.…”