He2+ irradiation induced microstructure evolution in sub-surface layer of the coarse-grained tungsten accessed by synchrotron GIXRD and GISAXS

doi:10.1016/j.apsusc.2022.153461

	He2+ irradiation induced microstructure evolution in sub-surface layer of the coarse-grained tungsten accessed by synchrotron GIXRD and GISAXS
	Huang, W. J.1,2; Sun, M.2; Wen, W.3; Yang, J. F.2; Xie, Z. M.2; Liu, R.2; Wang, X. P.2; Wu, X. B.2; Liu, C. S.2; Fang, Q. F.1,2
刊名	APPLIED SURFACE SCIENCE
	2022-08-15
卷号	593
关键词	Helium bubbles Tungsten GISAXS GIXRD Sub-surface layer
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2022.153461
通讯作者	Sun, M.(mengsun@issp.ac.cn) ; Yang, J. F.(jfyang@issp.ac.cn) ; Fang, Q. F.(qffang@issp.ac.cn)
英文摘要	In this study the microstructure evolution in sub-surface layer of the coarse-grained W after irradiation of 400 keV He2+ at different fluences and temperatures was assessed by synchrotron grazing incident X-ray diffraction (GIXRD) and grazing-incidence small-angle X-ray scattering (GISAXS). The splitting of GIXRD peaks obtained at different incident angles indicates that the un-irradiated coarse-grained W exhibits a compression strain state in the near surface and the He ions irradiation results in a lattice swelling which is more severe at higher irradiation temperature and fluence. The GISAXS results combined with the TEM analysis indicate that after irradiation at room temperature, uniformly distributed high density dislocation loops with an average radius of about 3.7 nm were formed due to the extrusion of He-V clusters. After irradiation at 400 degrees C, high density He bubbles with radii between 1 and 3 nm were formed in the sample interior, while large blisters appeared near the surface. This work provides a reference for the study of irradiation damage in the sub-surface layer of W alloys via synchrotron GIXRD and GISAXS.
资助项目	National Key Research and Development Program of China[2017YFA0402800] ; National Key Research and Development Program of China[2017YFE0300402] ; National Natural Science Foundation of China[51971213] ; National Natural Science Foundation of China[52173303] ; National Natural Science Foundation of China[52101159] ; National Natural Science Foundation of China[51801203] ; Natural Science Foundation of Anhui Province[1808085QE132] ; HIRFL User Project[HIR19PY006]
WOS关键词	BUBBLE FORMATION ; HELIUM ; LOOPS
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000850858900004
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; HIRFL User Project
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/128890]
专题	中国科学院合肥物质科学研究院
通讯作者	Sun, M.; Yang, J. F.; Fang, Q. F.
作者单位	1.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei, Peoples R China 3.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Huang, W. J.,Sun, M.,Wen, W.,et al. He2+ irradiation induced microstructure evolution in sub-surface layer of the coarse-grained tungsten accessed by synchrotron GIXRD and GISAXS[J]. APPLIED SURFACE SCIENCE,2022,593.
APA	Huang, W. J..,Sun, M..,Wen, W..,Yang, J. F..,Xie, Z. M..,...&Fang, Q. F..(2022).He2+ irradiation induced microstructure evolution in sub-surface layer of the coarse-grained tungsten accessed by synchrotron GIXRD and GISAXS.APPLIED SURFACE SCIENCE,593.
MLA	Huang, W. J.,et al."He2+ irradiation induced microstructure evolution in sub-surface layer of the coarse-grained tungsten accessed by synchrotron GIXRD and GISAXS".APPLIED SURFACE SCIENCE 593(2022).