Crystallographic Analysis and Mechanism of the Martensitic Transformation in the Heusler Alloy Ni47Mn42In11


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Abstract

The lattice parameters of the matrix of the modulated martensite crystal of the Ni47Mn42In11 alloy have been determined. Based on the phenomenological crystallographic theory of martensitic transformations, orientational relationships between the crystal lattices of the martensite matrix and the initial phase have been calculated, and the magnitude and the direction of the macroscopic shear, the habit plane, and the angle and the axis of rotation of the martensite plate have been determined. The mechanism of deformation upon the martensitic transformation has been established.

About the authors

B. M. Gundyrev

Mikheev Institute of Metals Physics, Ural Branch, Russian Academy of Sciences

Author for correspondence.
Email: gundyrev@imp.uran.ru
Russian Federation, Ekaterinburg, 620108

Yu. V. Kaletina

Mikheev Institute of Metals Physics, Ural Branch, Russian Academy of Sciences

Author for correspondence.
Email: kaletina@imp.uran.ru
Russian Federation, Ekaterinburg, 620108

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