201 FeGa(Galfenol)系磁歪合金の急冷効果と特性(マルチフェロイクス)

概要

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The purpose of this study is to improve the strength property and magnetic property of a Fe-Ga (Galfenol) system magnetostriction alloy, and to develop excellent magnetostriction alloy. And kinds of samples is the FeGaAl alloy which added aluminum as the 3rd element, and the FeGaAl-C alloy which added aluminum and carbon. In this experiment, the rapid solidification ribbon sample was produced using the Nozzleless Twin Rolling Method. The produced sample investigated about many characteristics, such as a strength property, a magnetic property, and the magnetostriction characteristic, using XRD, a tensile test, and VSM. A maximum magnetostriction of Fe-15.6Ga-4.9Al[at.%] alloy was 210ppm and (Fe-79.8Ga-5.0Al)-1.6C[at.%] alloy was 136ppm. In Tensile test, a maximum tensile strength was 859MPa, Young's modulus was 155.2GPa in the (Fe-79.8Ga-5.0Al)-1.6C[at.%] alloy, and a maximum tensile strength was 638MPa, Young's modulus was 103.0GPa in the Fe-15.6Ga-4.9Al[at%] alloy. This result showed that adaptation of the element addition effect and a rapid solidification process produced the excellent magnetostriction characteristic and a strength property.
社団法人日本機械学会の論文
2006-11-25