Distribution of Cr atoms in a strained and strain-relaxed Fe89.15Cr10.75 alloy: M\"ossbauer effect study

TL;DR

This study uses conversion electron Mössbauer spectroscopy to analyze how Cr atoms are distributed in a Fe-Cr alloy under different strain conditions, revealing significant differences in atomic arrangement and magnetic properties.

Contribution

It provides new insights into the atomic distribution and magnetic texture of Fe-Cr alloys subjected to strain, using a detailed spectroscopic analysis.

Findings

Differences in hyperfine fields between strained and strain-relaxed samples

Variation in Cr atom distribution within neighbor shells

Changes in magnetic texture due to strain

Abstract

A Fe89.15Cr10.75 alloy in a heavily strained (by cold rolling) and strain-relaxed states was studied by means of the conversion electrons M\"ossbauer spectroscopy (CEMS). Analysis of the spectra in terms of a two-shell model revealed significant differences between the studied samples, in particular, in values of the hyperfine field, a distribution of Cr atoms within the first two neighbor-shells, the latter was expressed in terms of the short-range order parameters, and in the magnetic texture.