利用等通道弯曲挤压的方法得到的晶粒平均尺寸大约为0.15μm的超细晶2J4合金试样,然后分别在590℃,600℃,610℃下进行30min回火,研究了不同回火温度对超细晶2J4磁滞合金磁性能的影响,并分析了产生影响的机理.最后讨论了在不同温度的回火过程中大量马氏体的转变,碳化物的析出对磁性能的影响.
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