K. V. Sapozhnikov, V. I. Nikolaev, V. M. Krymov, S. B. Kustov, “The influence of thermal treatment on elastic and anelastic properties of Ni$_{55}$Fe$_{18}$Ga$_{27}$ alloy single crystals”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2019, Volume 45, Issue 6,Pages 43

This article is cited in 1 paper

The influence of thermal treatment on elastic and anelastic properties of Ni$_{55}$Fe$_{18}$Ga$_{27}$ alloy single crystals

K. V. Sapozhnikov^ab, V. I. Nikolaev^ab, V. M. Krymov^a, S. B. Kustov^c

^a Ioffe Institute, St. Petersburg
^b St. Petersburg National Research University of Information Technologies, Mechanics and Optics
^c Department de Física, Universitat de les Illes Balears, Palma de Mallorca, Spain

Abstract: We have studied the influence of thermal treatment on the dynamic Young's modulus, linear and nonlinear internal friction, and Young's modulus defect of Ni$_{55}$Fe$_{18}$Ga$_{27}$ alloy single crystals. Strong variations of all these parameters were observed and explained by changes in the concentration of vacancies in the crystal lattice. It is concluded that vacancies form atmospheres near twin boundaries, the density of which (but not their extension) strongly depend on the concentration of vacancies.

Received: 19.12.2018
Revised: 19.12.2018
Accepted: 24.12.2018

DOI: 10.21883/PJTF.2019.06.47500.17647