CAJ | 학술논문

用X射线衍射分析仪(XRD), 透射电子显微镜(TEM), 扫描电子显微镜(SEM)和X射线吸收精细结构分析仪(EXAFS)对机械合金化后的FeNiPB(Cu, Nb)混合粉末进行了分析研究. 研究结果表明: FeNiPB(Cu, Nb)混合粉末球磨20h后合金化, 球磨80h后FeNiPB(Cu, Nb)混合粉末中的Fe, Ni原子处于非晶环境中, 粉末的形态为棉絮状, 电子衍射为典型的非晶环. XRD, EXAFS, TEM的分析结果表明在该条件下, FeNiPB(Cu, Nb)混合粉末完全转变成了非晶. FeNiPB(Cu, Nb)非晶合金在520℃加热1h后产生纳米晶, 所以纳米晶铁基合金可通过FeNiPB(Cu, Nb)非晶合金部分晶化获得.
용X사선연사분석의(XRD), 투사전자현미경(TEM), 소묘전자현미경(SEM)화X사선흡수정세결구분석의(EXAFS)대궤계합금화후적FeNiPB(Cu, Nb)혼합분말진행료분석연구. 연구결과표명: FeNiPB(Cu, Nb)혼합분말구마20h후합금화, 구마80h후FeNiPB(Cu, Nb)혼합분말중적Fe, Ni원자처우비정배경중, 분말적형태위면서상, 전자연사위전형적비정배. XRD, EXAFS, TEM적분석결과표명재해조건하, FeNiPB(Cu, Nb)혼합분말완전전변성료비정. FeNiPB(Cu, Nb)비정합금재520℃가열1h후산생납미정, 소이납미정철기합금가통과FeNiPB(Cu, Nb)비정합금부분정화획득.
The mechanical alloying of FeNiPB(Cu, Nb) mixed powders was studied by X-ray diffraction (XRD), transition electron microscope (TEM), scanning electron microscopy (SEM) and extended X-ray absorption fine structure (EXAFS). The results show that the FeNiPB(Cu, Nb) mixed powders alloy after milling for 20 h, as the milling time increases to 80h, Fe and Ni atoms are in an amorphous environment, the morphology of FeNiPB(Cu, Nb) mixed powders appears as cotton fiber and its electron diffraction pattern shows a typically diffuse amorphous halo. So FeNiPB(Cu, Nb) mixed powders transform to amorphous state under this condition. After the FeNiPB(Cu, Nb) amorphous alloy was heated at 520℃ for 1 h, the nanocrystalline FeNiPB(Cu, Nb) was produced. So, the Fe-based nanocrystalline alloy can be prepared by partially crystallizing the FeNiPB(Cu, Nb) amorphous alloy.