铁镓合金是继Fe、Ni基磁致伸缩合金和TbDyFe稀土巨磁致伸缩合金之后出现的一种新型磁致伸缩材料,兼具成本低、应变大、驱动磁场低、力学性能好等综合优点,是近期国际研究热点之一。重点综述了铁镓磁致伸缩合金在相结构、磁致伸缩效应和微合金化方面的最新研究进展,并展望了其未来发展趋势。
Following Fe-based, Ni-based and TbDyFe rare earth giant magnetostrictive alloys, a new developed mag- netostrictive Fe-Ga alloy, which contains merits of low cost, large strain, low saturation field and good mechanical properties, attracts great attention in recent study all over the world. The latest study on phase structure, greatly enhanced magnetostriction and the third element doping, and shows the trend in the development of new generation of magnetostrictive materials were focuses on.