Microstructure and mechanical behavior of nano-eutectic Fe83B17 alloy prepared by a self-propagating high temperature synthesis combining rapid solidification

	Microstructure and mechanical behavior of nano-eutectic Fe83B17 alloy prepared by a self-propagating high temperature synthesis combining rapid solidification
Department	固体润滑国家重点实验室
	Fu LC(符立才); Yang J(杨军); Bi QL(毕秦岭); Li LJ(李来军); Liu WM(刘维民); Yang J(杨军)
	2008
Source Publication	Journal of Physics D: Applied Physics
ISSN	0022-3727
Volume	41 Pages:235401(1-5)
Abstract	The limited room temperature ductility of nanostructured materials with uniform grain size distribution restricts practical applications. To circumvent this problem, we employ a self-propagating high temperature synthesis combining a rapid solidification process to prepare the bulk nano-eutectic Fe83B17 alloy, which can lead to simultaneous high strength and large ductility. The microstructure of the Fe83B17 alloy has been examined in detail using x-ray diffraction, scanning electron microscopy and transmission electron microscopy. The Fe83B17 alloy is composed of the eutectic of tetragonal Fe2B and α-Fe phases. The t-Fe2B and α-Fe phases display a fine lamellar eutectic structure with lamellar spacing of about 50 nm. The size of the eutectic colonies is in the range 3–25μm. High yield strength (1089MPa) and large ductility (∼24.9%) are observed simultaneously in mechanical behaviour tests. The rotation of the eutectic colonies, accompanying viscosity plastic flows to release the localization of the shear stress, can contribute to the simultaneous high strength and large ductility.
Funding Organization	the National Natural Science Foundation of China (50801064);the National 973 Project of China (2007CB607601)
Indexed By	SCI
Language	英语
Funding Project	高温抗磨材料组;空间润滑材料组
compositor	第一作者单位
Document Type	期刊论文
Identifier	http://ir.licp.cn/handle/362003/4331
Collection	固体润滑国家重点实验室（LSL）
Corresponding Author	Yang J(杨军)
Recommended Citation GB/T 7714	Fu LC,Yang J,Bi QL,et al. Microstructure and mechanical behavior of nano-eutectic Fe83B17 alloy prepared by a self-propagating high temperature synthesis combining rapid solidification[J]. Journal of Physics D: Applied Physics,2008,41:235401(1-5).
APA	Fu LC,Yang J,Bi QL,Li LJ,Liu WM,&杨军.(2008).Microstructure and mechanical behavior of nano-eutectic Fe83B17 alloy prepared by a self-propagating high temperature synthesis combining rapid solidification.Journal of Physics D: Applied Physics,41,235401(1-5).
MLA	Fu LC,et al."Microstructure and mechanical behavior of nano-eutectic Fe83B17 alloy prepared by a self-propagating high temperature synthesis combining rapid solidification".Journal of Physics D: Applied Physics 41(2008):235401(1-5).

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