2516 High fictionalization of rapid solidification FeGaAl (Galfenol) system alloy

Abstract

The purpose of this study is to improve the strength as well as magnetic property of a magnetostr ictive FeGaAl (Galfenol) system alloy. Rapid solidification ribbon samples of two kinds of kinds of Fe79.5Ga15.6Al4.9 [at.%] alloy and the (Fe80Ga15Al5)98.4C1.6 [at. %] alloy. Were produced using the nozzleless twin rolling method. In addition, material imp rovement by heat treatment in the characteristic, (Fe80Ga15Al5)98.4C1.6 [at.%] ribbon was studied. A maximum magnetostriction and tensile strength is 210ppm and 638MPa respectively in the Fe79.5Ga15.6Al4.9 [at.%] alloy and these are 175ppm and 959MPa in (Fe80Ga15Al5)98.4C1.6 [at.%] alloy by annealing at 823K for 3.6ks, which seems very useful in the industrial application because of the high tensile strength of nearly 1GPa in the of FeGaAl-Calloy.