Evolution of vacancy-type defects and hardening behaviors of T91 induced by 1.625 MeV Fe-ions at different temperatures

doi:10.1016/j.fusengdes.2017.05.046

CORC > 近代物理研究所 > 中国科学院近代物理研究所 > 先进核能材料研究室（ADS）

	Evolution of vacancy-type defects and hardening behaviors of T91 induced by 1.625 MeV Fe-ions at different temperatures
	Niu, Fenglei 2; Zhang, Yu 2; Yang, Anxia 2; Zhao, Yungan 2; Wang, Zhiguang1 ; Fang, Xuesong 1,3; Cui, Minghuan 1; Shen, Tielong 1; Hao, Zulong 2; Zhu, Huiping 2
刊名	FUSION ENGINEERING AND DESIGN
	2017-12-01
卷号	125 页码:372-377
关键词	Vacancy-type defects Irradiation hardening Self-ion irradiation T91 steel
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2017.05.046
英文摘要	Irradiation temperature is one of the most important parameters which determine the evolution of structural materials' properties. In this study, the evolution of vacancy-type defects and hardening behaviors of T91 steel induced by Fe-ion irradiation at different temperatures were investigated. The 1.625 MeV Fe ions were implanted in T91 to the fluence of 2.5 x 10(15) ions/cm(2) at temperatures from room temperature (RT) to 550 degrees C. After irradiation, the samples were analyzed by positron annihilation spectroscopy (PAS) and nano-indention technology (NIT). It was found that the sample irradiated at RT possessed the largest concentration of vacancy-type defects. At higher temperatures, the variation of vacancy-type defects concentrations were in a trend of C-v(550 degrees C) < c(v)(300 degrees C) < c(v)(450 degrees C). All the samples were hardened to different extents after irradiation. The hardness values increased initially and decreased afterward with the increasing temperatures, and the peak hardening is present at 300 degrees C. (C) 2017 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11635005] ; National Natural Science Foundation of China[51306057] ; Fundamental Research Funds for the Central Universities[2016MS61] ; Fundamental Research Funds for the Central Universities[2015ZZD12] ; Fundamental Research Funds for the Central Universities[2016ZZD05]
WOS关键词	POSITRON-ANNIHILATION SPECTROSCOPY ; CLAM STEEL ; CR ALLOYS ; FERRITIC/MARTENSITIC STEELS ; MICROSTRUCTURE EVOLUTION ; MECHANICAL-PROPERTIES ; MARTENSITIC STEEL ; IRRADIATION ; HELIUM ; INDENTATION
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000419407300056
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/47184]
专题	近代物理研究所_先进核能材料研究室（ADS）
通讯作者	Wang, Zhiguang; Zhu, Huiping
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 2.North China Elect Power Univ, Beijing 102206, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Niu, Fenglei,Zhang, Yu,Yang, Anxia,et al. Evolution of vacancy-type defects and hardening behaviors of T91 induced by 1.625 MeV Fe-ions at different temperatures[J]. FUSION ENGINEERING AND DESIGN,2017,125:372-377.
APA	Niu, Fenglei.,Zhang, Yu.,Yang, Anxia.,Zhao, Yungan.,Wang, Zhiguang.,...&Zhu, Huiping.(2017).Evolution of vacancy-type defects and hardening behaviors of T91 induced by 1.625 MeV Fe-ions at different temperatures.FUSION ENGINEERING AND DESIGN,125,372-377.
MLA	Niu, Fenglei,et al."Evolution of vacancy-type defects and hardening behaviors of T91 induced by 1.625 MeV Fe-ions at different temperatures".FUSION ENGINEERING AND DESIGN 125(2017):372-377.