Synthesis of nanocrystalline intermetallic layer by mechanical attrition
文献类型：会议论文
| 作者 | Wu XL(武晓雷) ; Hong YS(洪友士); Tao N; Meng XK; Lu J; Lu K
|
| 出版日期 | 2006 |
| 会议名称 | 135th TMS Annual Meeting, 2006 |
| 会议日期 | March 12, 2006 - March 16, 2006 |
| 会议地点 | San Antonio, TX, United states |
| 关键词 | Intermetallic grains Mechanical attrition Surface mechanical attrition treatment |
| 中文摘要 | By means of the technique of surface mechanical attrition treatment, the nanocrystalline (nc) intermetallic compound Co3Fe7 was synthesized in the surface layer of bulk cobalt. It was found that deformation-induced diffusion occurred, leading to the extension of solid solution. A series of phase transformation proceeded with increasing Fe content (atom percent) and followed the route from hcp (less than 4 percent Fe) to fee (4-11 percent Fe) and finally to bcc (> 11% Fe). Nanoscale composition analyses by EDX showed that Fe contents are significantly higher in grain boundaries and triple junctions than in grain interiors. It was turned out to be the conclusion that fast diffusion along grain boundaries dominate in larger grains whereas diffusion along triple junctions in nc intermetallic grains. The alloying on the atomic level was ascribed to deformation-induced intermixing during deformation at high strain rates. The mechanism of intermetallic formation was a result of numerous nucleation events followed by limited growth. |
| 收录类别 | EI |
| 会议录 | TMS Annual Meeting
 |
| 语种 | 英语 |
| ISBN号 | 087339626X |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/60291]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Wu XL,Hong YS,Tao N,et al. Synthesis of nanocrystalline intermetallic layer by mechanical attrition[C]. 见:135th TMS Annual Meeting, 2006. San Antonio, TX, United states. March 12, 2006 - March 16, 2006. |
入库方式： OAI收割
来源：力学研究所
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