XAFS and SRGI-XRD studies of the local structure of tellurium corrosion of Ni-18%Cr alloy

doi:10.1007/s41365-019-0673-4

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	XAFS and SRGI-XRD studies of the local structure of tellurium corrosion of Ni-18%Cr alloy
	Luo, M ; Deng, SJ ; Li, L ; Song, F ; Wang, LH ; Li, ZJ ; Jiang, Z
刊名	NUCLEAR SCIENCE AND TECHNIQUES
	2019
卷号	30 期号:10 页码:-
关键词	DIFFUSION BEHAVIOR TE
ISSN号	1001-8042
DOI	10.1007/s41365-019-0673-4
文献子类	期刊论文
英文摘要	The speciation and atomic structures of corrosion products in Ni-based alloys could provide basic information for understanding the Te corrosion mechanism. In this paper, two-dimensional synchrotron-radiation-induced grazing incidence X-ray diffraction was used to characterize the corrosion products of a Ni-18%Cr binary alloy at temperatures from 600 to 1000 degrees C. The results showed that a film of CrTe is preferentially formed when Te reacts with the Ni-based alloy at low temperatures (below 900 degrees C), while CrTe and Ni3Te2 are formed at 900 degrees C. Moreover, at a temperature of 1000 degrees C, a solid solution is formed without any changes in the Ni-Cr substrate lattice parameters. Furthermore, X-ray absorption fine structure and wavelet transform analyses were used to investigate the atomic local structure of Te. The investigation indicated that Te atoms diffuse into the Ni-Cr substrate to form a substitutional Ni-Cr-Te solid solution at 1000 degrees C. Notably, based on a discussion of the thermodynamics of the chemical reaction process, CrTe is considered to be the most stable and prevalent corrosion product due to its comparatively lower Gibbs free energy of formation. These results demonstrate that the Ni-18%Cr alloy is capable of resisting the diffusion of Te atoms.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32276]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Univ Chinese Acad Sci, Beijing 100049R, Peoples R China 2.Zhejiang Univ, Dept Mat Sci & Engn, Key Lab Adv Mat & Applicat Batteries Zhejiang Pro, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China; 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Ctr Thorium Molten Salts Reactor Syst, Shanghai 201800, Peoples R China; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Fac, Shanghai 201204, Peoples R China; 5.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China;
推荐引用方式 GB/T 7714	Luo, M,Deng, SJ,Li, L,et al. XAFS and SRGI-XRD studies of the local structure of tellurium corrosion of Ni-18%Cr alloy[J]. NUCLEAR SCIENCE AND TECHNIQUES,2019,30(10):-.
APA	Luo, M.,Deng, SJ.,Li, L.,Song, F.,Wang, LH.,...&Jiang, Z.(2019).XAFS and SRGI-XRD studies of the local structure of tellurium corrosion of Ni-18%Cr alloy.NUCLEAR SCIENCE AND TECHNIQUES,30(10),-.
MLA	Luo, M,et al."XAFS and SRGI-XRD studies of the local structure of tellurium corrosion of Ni-18%Cr alloy".NUCLEAR SCIENCE AND TECHNIQUES 30.10(2019):-.