| 电解沉积纳米镍退火析出相的EBSD分析 |
| |
| 引用本文： | 谢季佳,段桂花,武晓雷,洪友士. 电解沉积纳米镍退火析出相的EBSD分析[J]. 中国体视学与图像分析, 2007, 12(4): 250-253 |
| |
| 作者姓名： | 谢季佳 段桂花 武晓雷 洪友士 |
| |
| 作者单位： | 中国科学院力学研究所非线性力学国家重点实验室,北京,100080 |
| |
| 摘 要： | 电解沉积方法制备的纳米晶镍经650℃退火处理后，晶粒发生了长大，在晶内沿特定晶面析出了第二相颗粒，样品的拉伸断口为沿晶断口。利用EDS和EBSD对这种第二相析出物进行的成份分析和结构／取向分析表明：这种第二相颗粒是NiS2颗粒，其晶格取向与基体镍保持一致。NiS2颗粒沿基体镍的（001）面析出导致了晶界生长为台阶状并使晶界弱化。
|
| 关 键 词： | 镍 退火 析出相 EBSD |
| 文章编号： | 1007-1482(2007)04-0250-04 |
| 修稿时间： | 2007-09-01 |
EBSD analysis of the precipitate in electrodeposited nanocrystalline Ni after annealling |
| |
| XIE Jijia,DUAN Guihua,WU Xiaolei,HONG Youshi. EBSD analysis of the precipitate in electrodeposited nanocrystalline Ni after annealling[J]. Chinese Journal of Stereology and Image Analysis, 2007, 12(4): 250-253 |
| |
| Authors: | XIE Jijia DUAN Guihua WU Xiaolei HONG Youshi |
| |
| Affiliation: | XIE Jijia, DUAN Guihua, WU Xiaolei, HONG Youshi ( State Key Institute of Mechanics, Laboratory of Nonlinear Mechanics, Chinese Academy of Sciences, Beijing 100080) |
| |
| Abstract: | After annealing at 650℃ for one hour, the grain size of nanocrystalline Ni was observed growing up, and there are precipitates deposited in grains along a special direction. The analysis of the fracture surfaces of tension samples indicted the crack propagated along the grain boundary. The chemical composition the crystalline structure and the orientation of the precipitate was investigated by using EDS and EBSD. The results of the analysis indicate that this kind of precipitate is NiS2. The orientation of NiS2 particles is consistent with the orientation of the Ni grain. The NiS2 particles deposited along the （001） surface of Ni. This induced the steplike growth of grain boundary and the weakening of the grain boundary. |
| |
| Keywords: | EBSD |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
