Prediction of Magnetostrictive Properties of Fe-Ga Alloy Based on Internal Energy Model with Magnetomechanical Effect

Akihiro Koyama; Masaki Fujita; Takehito Ikeuchi; Muneyuki Imafuku

doi:10.4028/www.scientific.net/MSF.941.875

Paper Titles

Consolidation of Magnesium and Magnesium Alloy Machine Chips Using High-Pressure Torsion
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Impact of Initial State during Calibre Rolling: Investigating Microstructure and Mechanical Properties of AZ80 Magnesium Alloy
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Influence of Initiation Site and Lamellar Divergency on the Overall Kinetics of Cellular Growth and Coarsening in Aged U-Nb Alloys
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Modification of LPSO Structure in Mg-Ni-Y Alloy with Strontium
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Prediction of Magnetostrictive Properties of Fe-Ga Alloy Based on Internal Energy Model with Magnetomechanical Effect
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Apparent Poisson’s Ratio for Fe-Ga Alloy Single Crystal due to Magnetostriction
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Investigation of the Effect of Homogenization Practice of 6063 Alloy Billets on Beta to Alpha Transformation and of the Effect of Cooling Rate on Precipitation Kinetics
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Unique Effect of Carbon Addition on Development of Deformation and Recrystallization Textures in Heavily Cold-Rolled Fe-3%Si Alloys
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Control of Dispersolds in 7475 Aluminum Alloy
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HomeMaterials Science ForumMaterials Science Forum Vol. 941Prediction of Magnetostrictive Properties of Fe-Ga...

Prediction of Magnetostrictive Properties of Fe-Ga Alloy Based on Internal Energy Model with Magnetomechanical Effect

Abstract:

Fe-Ga alloy is expected as energy harvest material having superior magnetostrictive properties. In this study, we compared angle dependence of amount of magnetostriction with ideal magnetostrictive model using cube-oriented single crystal Fe-18mol%Ga alloy. Magnetostriction in [100] of specimen was measured with changing the direction of statical magnetic field H by strain gauge. As a result, the measured magnetostriction could not fully explaind by traditional energy-based model of magnetostriction. We compared measurement result using strain gauge with calculation result using energy-based model. As a result, there was a large difference in maximum compressive strain value. We established modified energy-based model considering the deviation of magnetic domains so as to match the actual magnetostriction behavior.