Nanocrystalline structure formation in carbon steel introduced by high speed drilling

IMR OpenIR

	Nanocrystalline structure formation in carbon steel introduced by high speed drilling
	J. G. Li; M. Umemoto; Y. Todaka; K. Tsuchiya
	2006
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	435 页码:383-388
摘要	The microstructure of drilled hole surface on an Fe-0.56% C steel (as-quenched martensite structure) has been investigated. A several microns thick nanocrystalline structure layer with an average grain size of the order of 10 nm was observed on the topmost surface of holes drilled at high speed. The existence of retained austenite on the hole surface suggests the occurrence of dynamic phase transformation (DPT) from bcc to fcc during high speed drilling. It is proposed that the nanocrystalline structure layer on the drilled hole surface is produced by a large strain gradient together with severe plastic deformation (SPD) induced DPT. (c) 2006 Elsevier B.V. All rights reserved.
部门归属	toyohashi univ technol, dept prod syst engn, toyohashi, aichi 4418580, japan. chinese acad sci, dept superalloy, inst met res, shenyang 110016, peoples r china.;li, jg (reprint author), toyohashi univ technol, dept prod syst engn, 1-1 hibarigaoka,tampaku cho, toyohashi, aichi 4418580, japan;lijinguo@martens.pse.tut.ac.jp
关键词	Nanocrystalline Structure Dynamic Phase Transformation Strain Gradient Drilling Carbon Steel Severe Plastic-deformation White Layers Ferrite Formation Grain-refinement Microstructure Surface Transformation Mechanisms Strain Wear
URL	查看原文
WOS记录号	WOS:000241683200049
引用统计	被引频次：29[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34304
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. G. Li,M. Umemoto,Y. Todaka,et al. Nanocrystalline structure formation in carbon steel introduced by high speed drilling[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2006,435:383-388.
APA	J. G. Li,M. Umemoto,Y. Todaka,&K. Tsuchiya.(2006).Nanocrystalline structure formation in carbon steel introduced by high speed drilling.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,435,383-388.
MLA	J. G. Li,et al."Nanocrystalline structure formation in carbon steel introduced by high speed drilling".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 435(2006):383-388.