Article ID Journal Published Year Pages File Type
1630569 Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material 2007 4 Pages PDF
Abstract
The effect of austenitization heat treatment on magnetic properties was examined by means of Mössbauer spectroscopy on an Fe-40wt%Ni-2wt%Mn alloy. The morphology of the alloy was obtained by using scanning electron microscopy (SEM) under different heat treatment conditions. The magnetic behavior of the non heat-treated alloy is ferromagnetic. A mixed magnetic structure including both paramagnetic and ferromagnetic states was obtained at 800°C after 6 and 12 h heat treatments. In addition, the magnetic structure of the heat-treated alloy at 1150°C for 12 h was ferromagnetic. With the volume fraction changing, the effective hyperfine field of the ferromagnetic austenite phase and isomery shift values were also determined by Mössbauer spectroscopy.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
Authors
, , ,