铸态铌铁中的相  

Phases in Nb-Fe Alloy Ingot

作　　者：田青超[1] 陈家光[1] 彭勇[1] 宓小川[1] 徐国栋[2] 

机构地区：[1]宝钢股份有限公司技术中心,上海201900 [2]宝钢股份有限公司炼钢厂,上海201900

出　　处：《物理测试》2005年第2期12-15,共4页Physics Examination and Testing

摘　　要：用电子探针、X射线衍射仪等设备研究了商用铌铁铸锭中的相。研究结果表明,合金中存在 Fe2Nb、FeNb以及Fe2Nb3 相。在不同牌号的铌铁合金中,各相的成分都不同程度地偏离了其原子配比。铸锭中亚稳Fe2Nb3 相的存在是由于凝固过程溶质元素以及杂质原子在凝固前沿富集的必然结果,也与其晶体结构有关。The phases in commercial Nb-Fe alloy ingot were investigated by X-ray diffractometer and electron probe microanalyser. It was found that there are Fe 2Nb、FeNb and Fe 2Nb 3 intermetallic phases in the alloy, and the Nb and Fe component deviate from certain atomic proportion to some extent with the increase of the Nb content. The existence of the Fe 2Nb 3 phases was the result of the congregation of the solute element in the solidification process, and also due to the characteristics of its crystal structure.

关 键 词：铸态 X射线衍射仪 电子探针 设备研究 研究结果 铌铁合金 原子配比 杂质原子 溶质元素 凝固过程 晶体结构 铸锭 牌号 

分 类 号：TG115[金属学及工艺—物理冶金]