Abstract：Absrtact: As a new type of intelligent material, Fe-Ga alloy is widely used in actuator, sensor, transducer and other high-tech fields， because of its low cost, low magnetic field, high magnetostrictive performance, high saturation magnetostrictive coefficient and excellent mechanical properties. The phase structure characteristics, phase transformation relationship, phase control and the effect of phase structure on magnetostriction of Fe-Ga alloy are introduced. And the future development trend is prospected.
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2021, Vol. 28 