Knowledge Management System of Institue of Mechanics, CAS
| In Situ Synthesis of Nanocrystalline Intermetallic Compound Layer During Surface Mechanical Attrition Treatment of Zirconium | |
Sun CY(孙彩云) ; Xie JJ(谢季佳); Wu XL(武晓雷); Hong YS(洪友士); Liu G; Lu J; Lu K; Wu XL(武晓雷)
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| Source Publication | Proceedings of 14th Congress of International Federation for Heat Treament and Surface Engineering(Ⅰ) |
| 2004-10-25 | |
| Pages | Pages: 1242-1246 |
| Conference Name | 14th Congress of the International-Federation-for-Heat-Treatment-and-Surface-Engineering, OCT 26-28, 2004 Shanghai, PEOPLES R CHINA |
| Conference Date | OCT 26-28, 2004 |
| Conference Place | Shanghai, PEOPLES R CHINA |
| Abstract | The surface mechanical attrition treatment (SMAT) technique was developed to synthesize a nanocrystalline (NC) layer on the surface of metallic materials for upgrading their overall properties and performance. In this paper, by means of SMAT to a pure zirconium plate at the room temperature, repetitive multidirectional peening of steel shots (composition (wt%): 1C, 1.5Cr, base Fe) severely deformed the surface layer. A NC surface layer consisting of the intermetallic compound FeCr was fabricated on the surface of the zirconium. The microstructure characterization of the surface layer was performed by using X-ray diffraction analysis, optical microscopy, scanning and transmission electron microscopy observations. The NC surface layer was about 25 mu m thick and consisted of the intermetallic compound FeCr with an average grain size of 25 +/- 10 nm. The deformation-induced fast diffusion of Fe and Cr from the steel shots into Zr occurred during SMAT, leading to the formation of intermetallic compound. In addition, the NC surface layer exhibited an ultrahigh nanohardness of 10.2 GPa. |
| WOS ID | WOS:000228664200289 |
| Indexed By | CPCI-S |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/13820 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Wu XL(武晓雷) |
| Recommended Citation GB/T 7714 | Sun CY,Xie JJ,Wu XL,et al. In Situ Synthesis of Nanocrystalline Intermetallic Compound Layer During Surface Mechanical Attrition Treatment of Zirconium[C]Proceedings of 14th Congress of International Federation for Heat Treament and Surface Engineering(Ⅰ),2004:Pages: 1242-1246. |
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