The major trap sites of deuterium in CuCrZr alloy

doi:10.1016/j.nme.2020.100755

	The major trap sites of deuterium in CuCrZr alloy
	Liu, Hao-Dong 1; Zhou, Hai-Shan 1; Zhao, Si-Xiang 3; Wang, Lu 1,2; Wei, Ran 1,2; Luo, Guang-Nan 1,2
刊名	NUCLEAR MATERIALS AND ENERGY
	2020-05-01
卷号	23
关键词	Heat treatment Hydrogen isotope Retention CuCrZr alloy
DOI	10.1016/j.nme.2020.100755
通讯作者	Zhou, Hai-Shan(haishanzhou@ipp.ac.cn)
英文摘要	The energy characteristics of the main deuterium (D) traps in CuCrZr alloy samples, which were previously annealed at temperatures of 773, 873, 973 and 1073 K and then exposed to D2 gas at a pressure of 2.5 x 104 Pa and a temperature of 723 K for 10 h, were studied by thermal desorption spectroscopy. Samples of oxygen free copper (OFC) were also investigated in the same way. For OFC, annealing at 773 K could reduce D retention appreciably. It indicates the temperature of 773 K is high enough to reduce the total D amount trapped by intrinsic defects (i.e. vacancies, dislocations and grain boundaries). However, for CuCrZr alloy, heat treatment does not reduce the D retention significantly until the annealing temperature is higher than 1073 K. Scanning electron microscope (SEM) and energy dispersive spectrometer (EDS) observations show that the density of precipitate particles especially the Zr-rich precipitate particles increase for the 1073 K-annealed one. It suggests the dissolved Zr atoms in the substrate are responsible for the D retention in CuCrZr alloy. D detrapping energy from the dissolved Zr atoms in CuCrZr alloy is estimated to be 0.98 eV from the TDS measurements.
资助项目	National Key R&D Program of China[2017YFE0301502] ; National Natural Science Foundation of China[11875288] ; National Natural Science Foundation of China[11705232] ; Users with Excellence Project of Hefei Science Center CAS[2018HSC-UE006] ; Youth Innovation Promotion Association CAS[2018484]
WOS关键词	HEAT-TREATMENTS ; MICROSTRUCTURE ; RETENTION
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000569101000006
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Users with Excellence Project of Hefei Science Center CAS ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/104133]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhou, Hai-Shan
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230031, Anhui, Peoples R China 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Liu, Hao-Dong,Zhou, Hai-Shan,Zhao, Si-Xiang,et al. The major trap sites of deuterium in CuCrZr alloy[J]. NUCLEAR MATERIALS AND ENERGY,2020,23.
APA	Liu, Hao-Dong,Zhou, Hai-Shan,Zhao, Si-Xiang,Wang, Lu,Wei, Ran,&Luo, Guang-Nan.(2020).The major trap sites of deuterium in CuCrZr alloy.NUCLEAR MATERIALS AND ENERGY,23.
MLA	Liu, Hao-Dong,et al."The major trap sites of deuterium in CuCrZr alloy".NUCLEAR MATERIALS AND ENERGY 23(2020).