Mechanical properties and fracture characteristics of high carbon steel after equal channel angular pressing

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	Mechanical properties and fracture characteristics of high carbon steel after equal channel angular pressing
	Y. Xiong; T. T. He; Z. Q. Guo; H. Y. He; F. Z. Ren; A. A. Volinsky
	2013
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	563 页码:163-167
摘要	The ultra-microduplex structure was fabricated in a fully pearlitic Fe-0.8 wt% C steel after equal channel angular pressing (ECAP) at 923 K via the Bc route. The microstructures and mechanical properties, before and after deformation, were investigated using scanning electron microscopy and mini-tensile tests. The cementite lamellae are gradually spheroidized by increasing the number of ECAP passes. After four passes, the cementite lamellae are fully spheroidized. Microhardness and the ultimate tensile strength of pearlite increase with the strain, up to a peak value (after two passes) and then decrease significantly. The yield strength, elongation and percentage of reduction in area increase with the number of ECAP passes. The tensile fracture morphology changes gradually from brittle cleavage to typical ductile fracture after four passes. (c) 2012 Elsevier B.V. All rights reserved.
部门归属	[xiong, yi ; guo, zhiqiang ; he, hongyu ; ren, fengzhang] henan univ sci & technol, sch mat sci & engn, luoyang 471003, peoples r china. [xiong, yi ; ren, fengzhang] henan key lab adv nonferrous met, luoyang 471003, peoples r china. [he, tiantian] chinese acad sci, inst met res, shenyang 110016, peoples r china. [volinsky, alex a.] univ s florida, dept mech engn, tampa, fl 33620 usa. ; xiong, y (reprint author), henan univ sci & technol, sch mat sci & engn, luoyang 471003, peoples r china. ; xy_hbdy@163.com
关键词	Ultra-microduplex Structure Equal Channel Angular Pressing Pearlitic Mechanical Properties Fracture Characteristics Grain-refinement Pearlitic Steel Microstructure Deformation
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71602
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Xiong,T. T. He,Z. Q. Guo,et al. Mechanical properties and fracture characteristics of high carbon steel after equal channel angular pressing[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2013,563:163-167.
APA	Y. Xiong,T. T. He,Z. Q. Guo,H. Y. He,F. Z. Ren,&A. A. Volinsky.(2013).Mechanical properties and fracture characteristics of high carbon steel after equal channel angular pressing.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,563,163-167.
MLA	Y. Xiong,et al."Mechanical properties and fracture characteristics of high carbon steel after equal channel angular pressing".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 563(2013):163-167.