少量硼对Fe-Cu纳米粉粒固溶度的影响  

EXTENDING OF THE SOLID SOLUBILITY OF Fe-Cu NANO-POWDER THROUGH ADDING MINOR BORON

作　　者：许裕生[1] 江焕宏[1] 钱敏[1] 金宗明[1] 王耀荣[1] 仇国阳[1] 马荣兵 薛青[1] 

机构地区：[1]苏州大学,苏州215006

出　　处：《金属学报》1997年第8期807-813,共7页Acta Metallurgica Sinica

摘　　要：用化学还原法制备了Fe－Cu过饱和团溶合金粉．Fe－Cu纳米粉中含有少量硼可扩展fcc相的成分范围．合金树体中Fe和Cu的原子比达到4：1时，主相仍保持fcc结构，Lcc相区的范围可超过采用机械合金化法制备的Fe－Cu合金．对样品的退火处理研究证明Fe－Cu系过饱和固溶合金的fcc相相当稳定．The nanometre-sized Fe-Cu supersaturated solid solutions were prepared by chemical reduction. There is a small amount of boron dissolved in the alloys. The solid solu-bility of fcc-phase is largely extended to about an atomic ratio of 4: 1 for Fe and Cu. The range of fcc phase in the Fe-Cu alloy goes beyond the scope of that prepared by mechanical alloying. The fcc phase was found to be rather stable during heat treatment. The large solubil-ity extending and high stability of fcc phase are caused by the small amount of boron con-tained in the alloys.

关 键 词：化学还原法 过饱和固溶体 铁铜合金 纳米粉末 

分 类 号：TB44[一般工业技术]