Low frequency GMI measurements after longitudinal AC and pulse current Joule-heat treatments indicate that the heat treatment has obvious influence on GMI effect, which showed diversified characters.

• 纵向交流电流及脉冲电流焦耳热处理后的低频GMI测试表明：热处理对材料GMI效应有明显的影响，其变化非常丰富，发现了一些新现象。