Effects of minor Ce doping on the microstructure and mechanical performances of a EH47 grade HSLA steel for ship and ocean engineering

doi:10.1016/j.matchar.2023.112931

IMR OpenIR

	Effects of minor Ce doping on the microstructure and mechanical performances of a EH47 grade HSLA steel for ship and ocean engineering
	Xiao, Jiuhan 1,2,3; Yan, Ling 1,2; Zhang, Peng 1,2; Li, Guanglong 1,2; Li, Boyong 1,2; Zhao, Tan 1,2; Wang, Hua 1,2; Chen, Lijia 3; Wang, Dong 4
通讯作者	Xiao, Jiuhan(jhxiao1003@163.com)
	2023-07-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	201 页码:13
摘要	The influence of minor Ce doping on the evolution mechanisms of microstructure and mechanical performances of EH47 grade HSLA steel for marine engineering was investigated by microstructure observation and analysis. In the present work, the chemical composition of steels with different Ce contents was designed, and the TMCP hotrolling process was applied to obtain a portion of bainitic microstructure for the purpose of achieve the performance indicators. The microstructures, precipitates, and inclusions of Ce-free and Ce-containing steels were observed and analyzed by using scanning electron microscopy (SEM) equipped with electron backscatter diffraction (EBSD) detector and transmission electron microscope (TEM) equipped with energy dispersive X-ray spectrometers (EDS). The strength, plasticity, and impact toughness of the experimental steels was measured and evaluated. According to the results, after adding rare earth Ce, the microstructures including grains, M-A constituents, and inclusions of steel were refined and optimized significantly. Then, the influencing mechanisms of Ce doping on precipitates and inclusions formation were further discussed in detail. Simultaneously, a clear variation tendency of mechanical properties was presented by Ce addition. The strength and hardness enhanced significantly, and the total elongation declined slightly. Moreover, the impact absorbed energy enhanced from 56 J to 152 J.
关键词	HSLA steel Grain refinement M -A constituent optimization Inclusion modification Mechanical properties improvement
资助者	National Science and Technology Major Project
DOI	10.1016/j.matchar.2023.112931
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project[J2019-IV-0006-0074]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:000983278700001
出版者	ELSEVIER SCIENCE INC
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/321006/177621
专题	中国科学院金属研究所
通讯作者	Xiao, Jiuhan
作者单位	1.State Key Lab Met Mat Marine Equipment & Applicat, Anshan 114021, Peoples R China 2.Anshan Iron & Steel Grp Co Ltd, Anshan 114021, Peoples R China 3.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Jiuhan,Yan, Ling,Zhang, Peng,et al. Effects of minor Ce doping on the microstructure and mechanical performances of a EH47 grade HSLA steel for ship and ocean engineering[J]. MATERIALS CHARACTERIZATION,2023,201:13.
APA	Xiao, Jiuhan.,Yan, Ling.,Zhang, Peng.,Li, Guanglong.,Li, Boyong.,...&Wang, Dong.(2023).Effects of minor Ce doping on the microstructure and mechanical performances of a EH47 grade HSLA steel for ship and ocean engineering.MATERIALS CHARACTERIZATION,201,13.
MLA	Xiao, Jiuhan,et al."Effects of minor Ce doping on the microstructure and mechanical performances of a EH47 grade HSLA steel for ship and ocean engineering".MATERIALS CHARACTERIZATION 201(2023):13.