Phase transitions, crystal growth

(Fe,Cr,Si)$_{75}$C$_{25}$ mechanosynthesised alloy: Moessbauer studies and magnetic hysteresis properties

A. A. Chulkina, A. I. Ulyanov, A. L. Ulyanov

Udmurt Federal Research Center of the Ural Branch of the Russian Academy of Sciences, Izhevsk

Abstract: The magnetic properties of (Fe$_{1-x-y}$Cr$_x$Si$_y$)$_{75}$C$_{25}$ (where $x$ = 0.05; 0.10, $y$ = 0.01; 0.03) nanocrystalline alloys, obtained by mechanosynthesis and subsequent annealing, as well as the magnetic state of the phases in these alloys have been investigated using Moessbauer spectroscopy and magnetic measurements. The peculiarities of the magnetic hysteresis properties formation of these alloys were determined. It has been shown that the concentration of chromium atoms in cementite, emerging at crystallization of the X-ray amorphous phase, depends on the annealing temperature. After annealing at the temperatures of 500–600$^\circ$C the cementite fraction with maximum chromium content is formed in the alloys.

Keywords: mechanosynthesis, annealing, redistribution of alloying elements, Moessbauer spectroscopy, specific saturation magnetization, coercive force.

Received: 29.05.2025
Revised: 04.07.2025
Accepted: 09.07.2025

DOI: 10.61011/FTT.2025.08.61330.178-25

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