Nanocrystalline formation during mechanical attrition of cobalt

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	Nanocrystalline formation during mechanical attrition of cobalt
	Zhou, J ; Sun, C ; Wu, X ; Tao, N ; Liu, G ; Meng, X ; Hong, Y
刊名	NANOMATERIALS BY SEVERE PLASTIC DEFORMATION
	2006
卷号	503-504 页码:751-756
关键词	nanostructure grain refinement surface mechanical attrition treatment cobalt
ISSN号	0255-5476
通讯作者	Zhou, J(xlwu@imech.ac.cn)
英文摘要	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研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	TRANS TECH PUBLICATIONS LTD
WOS记录号	WOS:000235943100118
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/85755]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhou, J
作者单位	1.Nanjing Univ, Dept Mat Sci, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Met Res Inst, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhou, J,Sun, C,Wu, X,et al. Nanocrystalline formation during mechanical attrition of cobalt[J]. NANOMATERIALS BY SEVERE PLASTIC DEFORMATION,2006,503-504:751-756.
APA	Zhou, J.,Sun, C.,Wu, X.,Tao, N.,Liu, G.,...&Hong, Y.(2006).Nanocrystalline formation during mechanical attrition of cobalt.NANOMATERIALS BY SEVERE PLASTIC DEFORMATION,503-504,751-756.
MLA	Zhou, J,et al."Nanocrystalline formation during mechanical attrition of cobalt".NANOMATERIALS BY SEVERE PLASTIC DEFORMATION 503-504(2006):751-756.