Investigation of the magnetostriction in Fe 100-x Mn x alloys with x = 45, 48, 50, 52 and 55, in as-cast, annealed and cold-rolled states was performed. The magnetostriction was measured by two methods: capacitance dilatometer and strain-gauge bridge. A careful structure characterization was made by XRD. For all samples the magnetostriction measured at room temperature was quasi-zero. Additionally, we found an orthorhombic structure for as-cast and annealed samples. These results are in strong disagreement with those reported in literature. Possible reasons for these disagreements are briefly discussed.
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics