In Situ Synthesis of Nanocrystalline Intermetallic Compound Layer during Surface Mechanical Attrition Treatment of Zirconium

IMECH-IR > 力学所知识产出(1956-2008)

	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
Source Publication	材料热处理学报
	2004
Volume	25 Issue:5II Pages:1242-1246
ISSN	1009-6264
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 μm 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.
Keyword	Nanocrystalline Intermetallic Compound Surface Layer Deformation Diffusion
Indexed By	EI ; CSCD
Language	中文
CSCD ID	CSCD:1847864
Citation statistics	Cited Times:2[CSCD] [CSCD Record]
Document Type	期刊论文
Identifier	http://dspace.imech.ac.cn/handle/311007/47743
Collection	力学所知识产出(1956-2008)
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[J]. 材料热处理学报,2004,25(5II):1242-1246.
APA	Sun CY.,Xie JJ.,Wu XL.,Hong YS.,Liu G.,...&Lu K.(2004).In Situ Synthesis of Nanocrystalline Intermetallic Compound Layer during Surface Mechanical Attrition Treatment of Zirconium.材料热处理学报,25(5II),1242-1246.
MLA	Sun CY,et al."In Situ Synthesis of Nanocrystalline Intermetallic Compound Layer during Surface Mechanical Attrition Treatment of Zirconium".材料热处理学报 25.5II(2004):1242-1246.

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