Investigation of Helium Behavior in RAFM Steel by Positron Annihilation Doppler Broadening and Thermal Desorption Spectroscopy

doi:10.3390/ma11091523

	Investigation of Helium Behavior in RAFM Steel by Positron Annihilation Doppler Broadening and Thermal Desorption Spectroscopy
	Cao XZ(曹兴忠); Jin, SX; Cao, XZ; Long, YX; Wei, YX; Jin SX(靳硕学); Shen, ZY; Guo, LP; Zhang, WP
刊名	MATERIALS
	2018
卷号	11 期号:9 页码:1523
关键词	reduced-activation ferritic/martensitic steel helium positron annihilation spectroscopy thermal desorption spectroscopy
ISSN号	1996-1944
DOI	10.3390/ma11091523
文献子类	Article
英文摘要	The behavior of helium in reduced-activation ferritic/martensitic steels was investigated systematically with positron annihilation Doppler broadening measurement and thermal desorption spectroscopy. Specimens were irradiated with helium ions with different energies to various fluences at different temperatures. A threshold fluence was observed above which the rate of formation and growth of helium bubbles dramatically increased. Irradiation at higher temperature could suppress the formation and growth of HenVm clusters with low binding energies and enhance that of helium bubbles and HenVm clusters with high binding energies. Different changes of S parameters were observed in various depth after the irradiation temperature was increased from 523 K to 723 K. Irradiation of 18 keV-He+ enhanced the growth of HenVm clusters and helium bubbles compared with 100 keV-He+ irradiation. A possible mechanism is discussed.
WOS关键词	IMPLANTED CLAM STEEL ; VACANCY CLUSTERS ; FERRITIC/MARTENSITIC STEELS ; ION IRRADIATION ; BUBBLE-GROWTH ; ALPHA-FE ; IRON ; DEFECTS ; TEMPERATURES ; RETENTION
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000446395200039
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286384]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Cao XZ,Jin, SX,Cao, XZ,et al. Investigation of Helium Behavior in RAFM Steel by Positron Annihilation Doppler Broadening and Thermal Desorption Spectroscopy[J]. MATERIALS,2018,11(9):1523.
APA	曹兴忠.,Jin, SX.,Cao, XZ.,Long, YX.,Wei, YX.,...&Zhang, WP.(2018).Investigation of Helium Behavior in RAFM Steel by Positron Annihilation Doppler Broadening and Thermal Desorption Spectroscopy.MATERIALS,11(9),1523.
MLA	曹兴忠,et al."Investigation of Helium Behavior in RAFM Steel by Positron Annihilation Doppler Broadening and Thermal Desorption Spectroscopy".MATERIALS 11.9(2018):1523.