Microstructure, crystallography, and toughness in nugget zone of friction stir welded high-strength pipeline steel

doi:10.1016/j.msea.2020.139620

CORC > 金属研究所 > 中国科学院金属研究所

	Microstructure, crystallography, and toughness in nugget zone of friction stir welded high-strength pipeline steel
	Duan, R. H.1; Xie, G. M.1; Luo, Z. A.1; Xue, P.4; Wang, C.3; Misra, R. D. K.2; Wang, G. D.1
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2020-07-22
卷号	791 页码:12
关键词	Pipeline steel Friction stir welding Microstructure Variant Toughness
ISSN号	0921-5093
DOI	10.1016/j.msea.2020.139620
通讯作者	Xie, G. M.(xiegm@ral.neu.edu.cn)
英文摘要	Herein, we address the scientific gap in the relationship among the microstructure, crystallography, and toughness in the nugget zone (NZ) of friction stir welded X80 pipeline steel at various heat input parameters of 300, 400, and 600 rpm. The decreased heat input results in refined prior austenite accompanied with an increase in the Z-parameter. Lath bainite (LB) and granular bainite (GB) appear at a high heat input and a bulk of GB appears at a medium heat input, whereas at a low heat input, a complex phase of LB, GB, and ferrite is obtained. The highest ratio of the bainite packet boundaries was identified at a low heat input, which is attributed to the existence of three Bain groups. The strongest shear texture was detected in the NZ at a medium heat input. An excellent toughness of up to 92.5% of that of the base metal was achieved at a low heat input owing to the highest ratio of packet boundaries, finest martensite-austenite constituents, and soft second phase of ferrite.
资助项目	National Natural Science Foundation of China of China[51774085] ; National Natural Science Foundation of China of China[51671190] ; Excellent Youth Foundation of Liaoning Province[2020-YQ-03] ; National Key Research and Development Program of China[2018YFA0707304] ; Fundamental Research for the Chinese Central Universities[N170704013] ; Northeastern University (NEU)
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000551484000010
资助机构	National Natural Science Foundation of China of China ; Excellent Youth Foundation of Liaoning Province ; National Key Research and Development Program of China ; Fundamental Research for the Chinese Central Universities ; Northeastern University (NEU)
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/139942]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xie, G. M.
作者单位	1.Northeastern Univ, State Key Lab Rolling & Automat, 3 Wenhua Rd, Shenyang 110819, Peoples R China 2.Univ Texas El Paso, Dept Met Mat & Biomed Engn, El Paso, TX 79968 USA 3.Northeastern Univ, Sch Met, 3 Wenhua Rd, Shenyang 110819, Peoples R China 4.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Duan, R. H.,Xie, G. M.,Luo, Z. A.,et al. Microstructure, crystallography, and toughness in nugget zone of friction stir welded high-strength pipeline steel[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,791:12.
APA	Duan, R. H..,Xie, G. M..,Luo, Z. A..,Xue, P..,Wang, C..,...&Wang, G. D..(2020).Microstructure, crystallography, and toughness in nugget zone of friction stir welded high-strength pipeline steel.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,791,12.
MLA	Duan, R. H.,et al."Microstructure, crystallography, and toughness in nugget zone of friction stir welded high-strength pipeline steel".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 791(2020):12.