Effect of tempering time on fatigue crack growth behavior of CLAM steel

doi:10.1016/j.jnucmat.2018.08.032

	Effect of tempering time on fatigue crack growth behavior of CLAM steel
	Liang, Mengtian 1,2; Zhao, Yanyun 1; Zheng, Mingjie 1; Mao, Xiaodong 1
	2018-11-01
发表期刊	JOURNAL OF NUCLEAR MATERIALS
ISSN	0022-3115
通讯作者	Zhao, Yanyun(yanyun.zhao@fds.org.cn) ; Zheng, Mingjie(mingjie.zheng@fds.org.cn)
摘要	Effect of tempering time on fatigue crack behavior of China Low Activation Martensitic (CLAM) steel was studied at room temperature in air. The fatigue crack growth rates subjected to the tempering time range of 90-9000 min were investigated. The results showed that the fatigue crack growth decelerated in the near-threshold region as the tempering time increased. The fatigue crack growth rate after tempering for 9000 min was approximately one-third of that of the specimen tempered for 90 min with Delta K of 14 MPa m(0.5). The improved fatigue crack growth resistance could be explained by the influence of variation in microstructure, i.e., martensitic laths and precipitates. This study suggested that the effective driving force for fatigue crack growth was reduced in the near-threshold region by the activated roughness-induced crack closure mechanism as a result of rougher fracture surface caused by coarsened martensitic laths and precipitates. (C) 2018 Elsevier B.V. All rights reserved.
关键词	CLAM steel Fatigue crack growth Tempering time Martensitic laths Precipitates
DOI	10.1016/j.jnucmat.2018.08.032
关键词[WOS]	LOW-CYCLE FATIGUE ; ACTIVATION MARTENSITIC STEEL ; 550 DEGREES-C ; MECHANICAL-PROPERTIES ; DIFFERENT TEMPERATURES ; FUSION APPLICATION ; ROOM-TEMPERATURE ; EUROFER 97 ; MICROSTRUCTURE ; THRESHOLD
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51601190] ; National Natural Science Foundation of China[11632001] ; Chinese Academy of Sciences Pioneer Hundred Talents Program ; National Key Research and Development Plan of China[2017YFE300601] ; National Magnetic Confinement Fusion Science Program of China[2015GB109006] ; Youth Innovation Promotion Association CAS[2017486] ; Distinguished Research Fellow Program of CASHIPS[Y7A2111121] ; National Natural Science Foundation of China[51601190] ; National Natural Science Foundation of China[11632001] ; Chinese Academy of Sciences Pioneer Hundred Talents Program ; National Key Research and Development Plan of China[2017YFE300601] ; National Magnetic Confinement Fusion Science Program of China[2015GB109006] ; Youth Innovation Promotion Association CAS[2017486] ; Distinguished Research Fellow Program of CASHIPS[Y7A2111121]
项目资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences Pioneer Hundred Talents Program ; Chinese Academy of Sciences Pioneer Hundred Talents Program ; Chinese Academy of Sciences Pioneer Hundred Talents Program ; Chinese Academy of Sciences Pioneer Hundred Talents Program ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Distinguished Research Fellow Program of CASHIPS ; Distinguished Research Fellow Program of CASHIPS ; Distinguished Research Fellow Program of CASHIPS ; Distinguished Research Fellow Program of CASHIPS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences Pioneer Hundred Talents Program ; Chinese Academy of Sciences Pioneer Hundred Talents Program ; Chinese Academy of Sciences Pioneer Hundred Talents Program ; Chinese Academy of Sciences Pioneer Hundred Talents Program ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Distinguished Research Fellow Program of CASHIPS ; Distinguished Research Fellow Program of CASHIPS ; Distinguished Research Fellow Program of CASHIPS ; Distinguished Research Fellow Program of CASHIPS
WOS研究方向	Materials Science ; Nuclear Science & Technology
WOS类目	Materials Science, Multidisciplinary ; Nuclear Science & Technology
WOS记录号	WOS:000446065100047
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/39780
专题	中国科学院核能安全技术研究所
通讯作者	Zhao, Yanyun; Zheng, Mingjie
作者单位	1.Chinese Acad Sci, Key Lab Neutron & Radiat Safety, Inst Nucl Energy Safety Technol, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Liang, Mengtian,Zhao, Yanyun,Zheng, Mingjie,et al. Effect of tempering time on fatigue crack growth behavior of CLAM steel[J]. JOURNAL OF NUCLEAR MATERIALS,2018,510:437-445.
APA	Liang, Mengtian,Zhao, Yanyun,Zheng, Mingjie,&Mao, Xiaodong.(2018).Effect of tempering time on fatigue crack growth behavior of CLAM steel.JOURNAL OF NUCLEAR MATERIALS,510,437-445.
MLA	Liang, Mengtian,et al."Effect of tempering time on fatigue crack growth behavior of CLAM steel".JOURNAL OF NUCLEAR MATERIALS 510(2018):437-445.