He ion implantation induced He bubbles and hardness in tungsten

doi:10.1016/j.nme.2018.05.004

	He ion implantation induced He bubbles and hardness in tungsten
	Cui Minghuan 1; Shen Tielong 1; Pang Lilong 1; Zhu Yabin 1; Jin Peng1,2 ; Liu Chao 1,2; Fang Xuesong 1,2; Wang Zhiguang1
刊名	NUCLEAR MATERIALS AND ENERGY
	2018-05
卷号	15 页码:232-236
ISSN号	2352-1791
DOI	10.1016/j.nme.2018.05.004
英文摘要	The pure tungsten was implanted with 500 keV helium (He) ions to a fluence of 1.0x10(17) ions/cm(2) at RT and 800 degrees C. After the implantation, cross-sectional transmission electron microscope (TEM) and nano-indentation measurements were used to investigate the He bubbles and hardness profiles induced by He implantation. Visible He bubbles were observed only in the damage peak region at RT but in the whole damage region at 800 degrees C. The size of He bubbles at 800 degrees C increased with increasing depths. With increasing the implantation temperature from RT to 800 degrees C, the size of He bubbles in the damage peak regions increased. The nano-indentation tests indicated that hardening was induced by He implantation at RT and 800 degrees C. The implantation induced peak hardness values were the same at both temperatures, but the hardness peaks moved to the surface with increasing temperatures. The formation of He bubbles and the contributions of their distribution and sizes to the hardness were discussed.
资助项目	National Natural Science Foundation of China[11605256] ; National Natural Science Foundation of China[91426301] ; National Natural Science Foundation of China[11505246] ; National Natural Science Foundation of China[11405231] ; National Natural Science Foundation of China[11575258] ; National Natural Science Foundation of China[11375242]
WOS关键词	NANO-INDENTATION ; PURE TUNGSTEN ; HELIUM ; IRRADIATION ; MICROSTRUCTURE ; BEHAVIOR ; RADIATION ; ALLOYS ; ISSUES ; DAMAGE
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000435611400039
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/64475]
专题	中国科学院近代物理研究所
通讯作者	Cui Minghuan; Shen Tielong
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Cui Minghuan,Shen Tielong,Pang Lilong,et al. He ion implantation induced He bubbles and hardness in tungsten[J]. NUCLEAR MATERIALS AND ENERGY,2018,15:232-236.
APA	Cui Minghuan.,Shen Tielong.,Pang Lilong.,Zhu Yabin.,Jin Peng.,...&Wang Zhiguang.(2018).He ion implantation induced He bubbles and hardness in tungsten.NUCLEAR MATERIALS AND ENERGY,15,232-236.
MLA	Cui Minghuan,et al."He ion implantation induced He bubbles and hardness in tungsten".NUCLEAR MATERIALS AND ENERGY 15(2018):232-236.