Microstructure evolution of T91 steel after heavy ion irradiation at 550 degrees C*

doi:10.1088/1674-1056/ac0a64

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Microstructure evolution of T91 steel after heavy ion irradiation at 550 degrees C*
	Song, Ligang 4; Huang, Bo 4; Li JH(李江华)3; Ma, Xianfeng 4; Li, Yang 1,2; Fang, Zehua 4; Liu, Min 4; Jiang, Jishen 4; Hu, Yanying 4
刊名	CHINESE PHYSICS B
	2021-08-01
卷号	30 期号:8 页码:9
关键词	T91 steel high energy Kr ions irradiation irradiation defects transmission electron microscope (TEM)
ISSN号	1674-1056
DOI	10.1088/1674-1056/ac0a64
通讯作者	Ma, Xianfeng(maxf6@mail.sysu.edu.cn) ; Li, Yang(yang.li@cea.fr)
英文摘要	Fe-Cr ferritic/martensitic (F/M) steels have been proposed as one of the candidate materials for the Generation IV nuclear technologies. In this study, a widely-used ferritic/martensitic steel, T91 steel, was irradiated by 196-MeV Kr+ ions at 550 degrees C. To reveal the irradiation mechanism, the microstructure evolution of irradiated T91 steel was studied in details by transmission electron microscope (TEM). With increasing dose, the defects gradually changed from black dots to dislocation loops, and further to form dislocation walls near grain boundaries due to the production of a large number of dislocations. When many dislocation loops of primary a (0)/2 111 type with high migration interacted with other defects or carbon atoms, it led to the production of dislocation segments and other dislocation loops of a (0) 100 type. Lots of defects accumulated near grain boundaries in the irradiated area, especially in the high-dose area. The grain boundaries of martensite laths acted as important sinks of irradiation defects in T91. Elevated temperature facilitated the migration of defects, leading to the accumulation of defects near the grain boundaries of martensite laths.
分类号	Q3
资助项目	Guangdong Major Project of Basic and Applied Basic Research[2019B030302011] ; National Natural Science Foundation of China[U2032143] ; National Natural Science Foundation of China[11902370] ; National Natural Science Foundation of China[52005523] ; International Science and Technology Cooperation Program of Guangdong Province, China[2019A050510022] ; China Postdoctoral Science Foundation[2019M653173] ; China Postdoctoral Science Foundation[2019TQ0374] ; Heavy Ion Research Facility of Lanzhou (HIRFL)
WOS关键词	PROTON
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000690399900001
资助机构	Guangdong Major Project of Basic and Applied Basic Research ; National Natural Science Foundation of China ; International Science and Technology Cooperation Program of Guangdong Province, China ; China Postdoctoral Science Foundation ; Heavy Ion Research Facility of Lanzhou (HIRFL)
其他责任者	Ma, Xianfeng ; Li, Yang
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/87383]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA 2.Univ Paris Saclay, CEA, DEN Serv Recherches Metallurg Appl, F-91191 Gif Sur Yvette, France; 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China; 4.Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China;
推荐引用方式 GB/T 7714	Song, Ligang,Huang, Bo,Li JH,et al. Microstructure evolution of T91 steel after heavy ion irradiation at 550 degrees C*[J]. CHINESE PHYSICS B,2021,30(8):9.
APA	Song, Ligang.,Huang, Bo.,李江华.,Ma, Xianfeng.,Li, Yang.,...&Hu, Yanying.(2021).Microstructure evolution of T91 steel after heavy ion irradiation at 550 degrees C*.CHINESE PHYSICS B,30(8),9.
MLA	Song, Ligang,et al."Microstructure evolution of T91 steel after heavy ion irradiation at 550 degrees C*".CHINESE PHYSICS B 30.8(2021):9.