|
|||||
|
|
| 机械合金化Fe0.6Ni0.4体系的结构研究 | |
| 引用本文： | 卞清,谢治,张静,阎文胜,韦世强,殷士龙. 机械合金化Fe0.6Ni0.4体系的结构研究[J]. 核技术, 2003, 26(12): 914-917 |
| 作者姓名： | 卞清 谢治 张静 阎文胜 韦世强 殷士龙 |
| 作者单位： | 1. 解放军理工大学理学院,南京,210007 2. 中国科学技术大学国家同步辐射实验室,合肥,230029 3. 中国科学院高能物理研究所同步辐射室,北京,100039 4. 河海大学理学院,南京,210098 |
| 摘 要： | 利用XAFS(X射线吸收精细结构)和XRD(X射线衍射)方法研究了机械合金化Fe0．6Ni0.4系统在制备过程中的晶体结构和Fe原子的局域配位环境。结果表明，球磨5h，样品中Fe、Ni原子开始产生合金化，但仍然为bcc和fcc混合的两种物相；球磨10h后，bcc结构Fe的特征配位峰消失，转化为fcc结构，随着球磨时间的增加，配位无序度逐渐增大；球磨40h后，Fe原子的近邻结构又有新的变化，是由多种物态组成的混合物。 |
| 关 键 词： | X射线吸收精细结构 X射线衍射 机械合金化 Fe0.6Ni0.4系统 磁性材料 铁镍合金 |
| 修稿时间： | 2002-09-12 |
Microstructures of mechanically alloyed Fe0.6Ni0.4 |
|
| BIANQing XIE Zhi ZHANG Jing YAN Wensheng WEI Shiqiang YIN Shilong. Microstructures of mechanically alloyed Fe0.6Ni0.4[J]. Nuclear Techniques, 2003, 26(12): 914-917 | |
| Authors: | BIANQing XIE Zhi ZHANG Jing YAN Wensheng WEI Shiqiang YIN Shilong |
| Abstract: | Structures of the mechanically alloyed Fe0.6Ni0.4 after milling for 5, 10, 20, 40 h were investigated by X-ray absorption fine structure (XAFS) and X-ray diffraction (XRD). The results show that after milling for 5 h the patterns with bcc-like structure of a-Fe and with fee-like structure of Ni were observed. After milling for 10-20h the patterns with bcc-like structure of a-Fe disappeared, and only the patterns with fee-like structure were observed. After milling for 40 h the weak patterns with bcc-like structure appeared again. So the mechanically alloyed Fe0.6Ni0.4 after milling for 40 h is not a homogeneous supersaturated solid solution. |
| Keywords: | X-ray absorption fine structure (XAFS) X-ray diffraction (XRD) Mechanical alloying |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |