On the thermal stability of a 9Cr-ODS steel aged at 700 degrees C up to 10000 h - Mechanical properties and microstructure

doi:10.1016/j.msea.2020.139292

IMR OpenIR

	On the thermal stability of a 9Cr-ODS steel aged at 700 degrees C up to 10000 h - Mechanical properties and microstructure
	Zheng, Pengfei 1; Li, Yanfen 2,3; Zhang, Jiarong 2; Shen, Jingjie 4; Nagasaka, Takuya 4; Muroga, Takeo 4; Abe, Hiroaki 5
通讯作者	Li, Yanfen(yfli@imr.ac.cn)
	2020-05-05
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	783 页码:9
摘要	Thermal aging experiments on a 9Cr-ODS steel were carried out at 700 degrees C with a period from 100 up to 10000 h, and the effects on mechanical properties and microstructural evolutions were investigated. It was found that hardness and tensile properties exhibited negligible degradation by thermal aging. The mixed ductile and brittle fracture modes in the tensile specimens remained almost no change. Although a slight recovery of grains/subgrain structures and dislocations took place, the homogeneously dispersed nano-size oxides with an ultrahigh density in matrix were not affected during the thermal aging. However, a significant coarsening of carbides around grain/subgrain boundaries appeared. Benefited from the extreme stability of nano-size oxides, the 9Cr-ODS steel possesses the excellent thermal stability of mechanical properties exposed to the elevated temperature of 700 degrees C up to 10000 h.
关键词	Nuclear materials Oxide dispersion strengthened (ODS) steels Thermal stability Mechanical properties Microstructural evolution
资助者	National Nature Science Foundation of China ; Japan Society for the Promotion of Science (JSPS) ; National Institute for Fusion Science ; University of Tokyo in Japan ; Excellent Scholar Funding by Institute of Metal Research Chinese Academy of Science (IMR-CAS)
DOI	10.1016/j.msea.2020.139292
收录类别	SCI
语种	英语
资助项目	National Nature Science Foundation of China[51971217] ; Japan Society for the Promotion of Science (JSPS)[PU 14001] ; National Institute for Fusion Science ; University of Tokyo in Japan ; Excellent Scholar Funding by Institute of Metal Research Chinese Academy of Science (IMR-CAS)[JY7A7A111A1]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000528267700008
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：27[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/321006/138463
专题	中国科学院金属研究所
通讯作者	Li, Yanfen
作者单位	1.Southwestern Inst Phys, Chengdu 610041, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, IMR, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China 4.Natl Inst Fus Sci, 322-6 Oroshi, Toki, Gifu 5095292, Japan 5.Univ Tokyo, Sch Engn, Tokai, Ibaraki 3191188, Japan
推荐引用方式 GB/T 7714	Zheng, Pengfei,Li, Yanfen,Zhang, Jiarong,et al. On the thermal stability of a 9Cr-ODS steel aged at 700 degrees C up to 10000 h - Mechanical properties and microstructure[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,783:9.
APA	Zheng, Pengfei.,Li, Yanfen.,Zhang, Jiarong.,Shen, Jingjie.,Nagasaka, Takuya.,...&Abe, Hiroaki.(2020).On the thermal stability of a 9Cr-ODS steel aged at 700 degrees C up to 10000 h - Mechanical properties and microstructure.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,783,9.
MLA	Zheng, Pengfei,et al."On the thermal stability of a 9Cr-ODS steel aged at 700 degrees C up to 10000 h - Mechanical properties and microstructure".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 783(2020):9.