Temperature effect on fracture toughness of CLF-1 steel with miniature three-point bend specimens

doi:10.1016/j.jnucmat.2020.151992

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

	Temperature effect on fracture toughness of CLF-1 steel with miniature three-point bend specimens
	Xie Y 1; Peng L 1; Zhang WZ 1; Liao HB 3; Qian GA(钱桂安)2; Wan YX 1
刊名	JOURNAL OF NUCLEAR MATERIALS
	2020-04-01
卷号	531 页码:7
关键词	RAFM steel Fracture toughness Temperature effect CLF-1
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2020.151992
通讯作者	Peng, Lei(penglei@ustc.edu.cn)
英文摘要	Fracture toughness is one important mechanical property of reduced activation ferritic/martensitic (RAFM) steels which are primary candidate structural materials applied to fusion reactors. Temperature effect on fracture toughness of the Chinese low activation ferritic/martensitic (CLF-1) steel was investigated in the range of 25-550 degrees C with miniature three-point bend (3PB) specimens, using the digital image correlation (DIC) method to measure load-line displacement. Results show that the fracture toughness J(0.2)(B) of CLF-1 steel decreases from 25 degrees C to 450 degrees C and increases from 450 degrees C to 550 degrees C. This changing trend with temperature is similar to that of some commercial ferritic/martensitic (F/M) steels and consistent with the temperature dependence of its ductility which is total elongation obtained from tensile testing. The fracture toughness minimum at 450 degrees C could be attributed to the deterioration of ductility, where the fracture surfaces with few typical dimples indicated quasi-cleavage-like features. (C) 2020 Elsevier B.V. All rights reserved.
分类号	一类
资助项目	China National Natural Science Foundation - NSAF[U1730123]
WOS关键词	FERRITIC-MARTENSITIC STEELS ; DIGITAL-IMAGE-CORRELATION ; MODIFIED 9CR-1MO ; CLAM STEEL ; MECHANICAL-PROPERTIES ; HIGH-ACCURACY ; BEHAVIOR ; JLF-1 ; TENSILE ; IRRADIATION
WOS研究方向	Materials Science ; Nuclear Science & Technology
语种	英语
WOS记录号	WOS:000518889500035
资助机构	China National Natural Science Foundation - NSAF
其他责任者	Peng, Lei
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/81831]
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 Sci & Technol China, Hefei 230027, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 3.Southwestern Inst Phys, Chengdu 610041, Peoples R China;
推荐引用方式 GB/T 7714	Xie Y,Peng L,Zhang WZ,et al. Temperature effect on fracture toughness of CLF-1 steel with miniature three-point bend specimens[J]. JOURNAL OF NUCLEAR MATERIALS,2020,531:7.
APA	Xie Y,Peng L,Zhang WZ,Liao HB,钱桂安,&Wan YX.(2020).Temperature effect on fracture toughness of CLF-1 steel with miniature three-point bend specimens.JOURNAL OF NUCLEAR MATERIALS,531,7.
MLA	Xie Y,et al."Temperature effect on fracture toughness of CLF-1 steel with miniature three-point bend specimens".JOURNAL OF NUCLEAR MATERIALS 531(2020):7.