A simple model for the strength and elongation of ultra-fine grained low carbon steels

IMR OpenIR

	A simple model for the strength and elongation of ultra-fine grained low carbon steels; A simple model for the strength and elongation of ultra-fine grained low carbon steels
	S. X. Li; G. Y. Li; Y. Q. Weng
	2004 ; 2004
发表期刊	Zeitschrift Fur Metallkunde ; Zeitschrift Fur Metallkunde
ISSN	0044-3093 ; 0044-3093
卷号	95 期号:2 页码:115-119
摘要	The documented experimental results show that grain refinement can not substantially improve the elongation but the strength of low carbon steels, particularly when the grain size is smaller than 1 mum. A simple model of geometrically necessary dislocations and statistically-stored dislocations is proposed to account for the effects of grain refinement on the yield strength and uniform elongation of ultrafine grained low carbon steels. In this model, both grain boundary and precipitate strengthening mechanisms were considered. It is shown that both grain and precipitate refinements are necessary to improve the strength and elongation of materials.; The documented experimental results show that grain refinement can not substantially improve the elongation but the strength of low carbon steels, particularly when the grain size is smaller than 1 mum. A simple model of geometrically necessary dislocations and statistically-stored dislocations is proposed to account for the effects of grain refinement on the yield strength and uniform elongation of ultrafine grained low carbon steels. In this model, both grain boundary and precipitate strengthening mechanisms were considered. It is shown that both grain and precipitate refinements are necessary to improve the strength and elongation of materials.
部门归属	cas, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. cent iron & steel res inst, beijing 100081, peoples r china.;li, sx (reprint author), cas, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;shxli@imr.ac.cn ; cas, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. cent iron & steel res inst, beijing 100081, peoples r china.;li, sx (reprint author), cas, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;shxli@imr.ac.cn
关键词	Precipitate Strengthening Precipitate Strengthening Low Carbon Steels Low Carbon Steels Hall-petch Relationship Hall-petch Relationship Nanocrystalline Materials Nanocrystalline Materials Law Law
URL	查看原文 ; 查看原文
WOS记录号	WOS:000220500500009 ; WOS:000220500500009
引用统计	被引频次：8[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/321006/35421
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. X. Li,G. Y. Li,Y. Q. Weng. A simple model for the strength and elongation of ultra-fine grained low carbon steels, A simple model for the strength and elongation of ultra-fine grained low carbon steels[J]. Zeitschrift Fur Metallkunde, Zeitschrift Fur Metallkunde,2004, 2004,95, 95(2):115-119, 115-119.
APA	S. X. Li,G. Y. Li,&Y. Q. Weng.(2004).A simple model for the strength and elongation of ultra-fine grained low carbon steels.Zeitschrift Fur Metallkunde,95(2),115-119.
MLA	S. X. Li,et al."A simple model for the strength and elongation of ultra-fine grained low carbon steels".Zeitschrift Fur Metallkunde 95.2(2004):115-119.