Nanocrystalline Formation during Mechanical Attrition of Cobalt

IMECH-IR > 力学所知识产出(1956-2008)

	Nanocrystalline Formation during Mechanical Attrition of Cobalt
	Zhou J; Sun C; Wu XL(武晓雷); Tao N; Liu G; Meng X; Hong YS(洪友士); Wu XL(武晓雷)
会议录名称	Materials Science Forum
	2005-09-22
页码	751-756
会议名称	3rd International Conference on Nanomaterials by Severe Plastic Deformation
会议日期	SEP 22-26, 2005
会议地点	Fukuoka, JAPAN
摘要	The nanocrystalline (nc) formation was studied in cobalt (a mixture of c (hexagonal close packed) and gamma (face-centered cubic) phases) subjected to surface mechanical attrition treatment. Electron microscopy revealed the operation of {10(1) over bar 0}< 11(2) over bar 0 > prismatic and {0001}< 11(2) over bar 0 > basal slip in the E phase, leading to the successive subdivision of grains to nanoscale. In particular, the dislocation splitting into the stacking faults was observed to occur in ultrafine and nc grains. By contrast, the planar dislocation arrays, twins and martensites were evidenced in the gamma phase. The strain-induced gamma ->epsilon martensitic transformation was found to progress continuously in ultrafine and nc grains as the strain increased. The nc formation in the gamma phase was interpreted in terms of the martensitic transformation and twinning.
WOS记录号	WOS:000235943100118
收录类别	CPCI-S ; EI
语种	英语
引用统计
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/13839
专题	力学所知识产出(1956-2008)
通讯作者	Wu XL(武晓雷)
推荐引用方式 GB/T 7714	Zhou J,Sun C,Wu XL,et al. Nanocrystalline Formation during Mechanical Attrition of Cobalt[C]Materials Science Forum,2005:751-756.

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