使用XRD和Mossbauer等方法,研究了在Ar气氛下机械合金化Fe-Ni粉末相结构的变化.结果表明,在机械合金化Fe64Ni36粉末过程中,fcc相的数量随着球磨时间的增加先增加然后减少,与加乙醇球磨Fe64Ni36的情形相同.当Ni的含量(原子分数)大于50%时,有fcc相、顺磁相和FeNi3形成,当Ni的含量低于50%时,bcc相的数量随着Ni含量减少而增加.Mossbauer谱的结果表明,因球磨时间或Fe、Ni比例的不同,Fe-Ni球磨粉末固溶体具有不同结构的原子配比.
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