Effect of Cu Alloying on Strain Capacity of Cu-bearing Pipeline Steels

doi:10.2355/isijinternational.ISIJINT-2019-499

CORC > 金属研究所 > 中国科学院金属研究所

	Effect of Cu Alloying on Strain Capacity of Cu-bearing Pipeline Steels
	Shi, Xianbo 1; Yan, Wei 1; Yang, Zhenguo 1; Ren, Yi 2; Shan, Yiyin 1; Yang, Ke 1
刊名	ISIJ INTERNATIONAL
	2020
卷号	60 期号:4 页码:792-798
关键词	Cu-bearing pipeline steel strain capacity yield ratio uniform elongation strain hardening exponent
ISSN号	0915-1559
DOI	10.2355/isijinternational.ISIJINT-2019-499
通讯作者	Shi, Xianbo(xbshi@imr.ac.cn)
英文摘要	The present study aims to elucidate the effect of Cu alloying on the strain capacity of Cu-bearing pipeline steels. The main emphasis was placed on understanding the effects of Cu content (1.0Cu, 1.5Cu and 2.0Cu) and the existence form of Cu (as-rolled and as-aged steels) on the yield stress/tensile stress ratio (yield ratio), uniform elongation and strain hardening exponent. Experimental results show that the engineering stress-strain curves present continuous yielding behavior for the as-rolled steels but discontinuous yielding for the as-aged steels. For both as-rolled and as-aged steels, increasing Cu content increases the yield ratio with an accompanying decrease of uniform elongation. It was found that the as-rolled 1.0Cu steel has one strain hardening exponent (n value), low yield ratio (0.68), high n value (0.18) and high uniform elongation (17.7%), showing an excellent deformation ability. There are two n values for the other steels (1.0Cu as-aged, 1.5Cu and 2.0Cu as-rolled and as-aged), and their n values increase at low stress but decrease at high stress with increase of Cu content. In contrast to the as-aged steels, the as-rolled steels show better strain capacity.
资助项目	National Key Research and Development Program of China[2018YFC0310302] ; National Key Research and Development Program of China[2018YFC0310304] ; Shenyang Science and Technology Research Funding[18-013-0-53] ; Doctoral Scientific Research Foundation of Liaoning Province[20180540083]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	IRON STEEL INST JAPAN KEIDANREN KAIKAN
WOS记录号	WOS:000543885900022
资助机构	National Key Research and Development Program of China ; Shenyang Science and Technology Research Funding ; Doctoral Scientific Research Foundation of Liaoning Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/139687]
专题	金属研究所_中国科学院金属研究所
通讯作者	Shi, Xianbo
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.State Key Lab Met Mat Marine Equipment & Applicat, Anshan 114009, Peoples R China
推荐引用方式 GB/T 7714	Shi, Xianbo,Yan, Wei,Yang, Zhenguo,et al. Effect of Cu Alloying on Strain Capacity of Cu-bearing Pipeline Steels[J]. ISIJ INTERNATIONAL,2020,60(4):792-798.
APA	Shi, Xianbo,Yan, Wei,Yang, Zhenguo,Ren, Yi,Shan, Yiyin,&Yang, Ke.(2020).Effect of Cu Alloying on Strain Capacity of Cu-bearing Pipeline Steels.ISIJ INTERNATIONAL,60(4),792-798.
MLA	Shi, Xianbo,et al."Effect of Cu Alloying on Strain Capacity of Cu-bearing Pipeline Steels".ISIJ INTERNATIONAL 60.4(2020):792-798.