CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Effect of Cr contents on the diffusion behavior of Te in Ni-based alloy
Jia, YY; Li, ZF; Ye, XX; Liu, RD; Leng, B; Qiu, J; Liu, M; Li, ZJ
2017
Source PublicationJOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
Volume497Issue:-Pages:101-106
Subtype期刊论文
AbstractThe embrittlement of Ni-based structural alloys caused by fission production Te is one of the major challenges for molten salt reactors. It has been reported that solution element Cr can prevent the situation of intergranular cracks caused by Te. However, there is no detailed mechanism explanation on this phenomenon. In this study, the effect of Cr on Te diffusion in Ni-Cr binary system was investigated by diffusion experiments at 800 degrees C for 100 h. Results show that Te reacts with the alloy mainly forming Ni3Te2 , and strip shaped Cr3Te4 is only found on the surface of Ni-15%Cr alloy. According to the discussion of thermodynamic chemical reaction process, Cr3Te4 exhibits the best stability and preferential formation compound in Te/Ni-Cr system as its Gibbs free energy of formation is the lowest. With the increase of Cr content in the alloy, the diffusion depth of Te along grain boundaries significantly decreases. Moreover, the formation process of reaction product and diffusion process are described. The diffusion of Te can be suppressed by high content of Cr in Ni-Cr alloy due to the formation of Cr3Te4 and thus the grain boundary is protected from Te corroding. (C) 2017 Elsevier B.V. All rights reserved.
KeywordMolten-salt Reactor Tellurium Corrosion Nickel Superalloy Chemistry
DOI10.1016/j.jnucmat.2017.10.062
WOS KeywordMOLTEN-SALT REACTOR ; TELLURIUM ; CORROSION ; NICKEL ; SUPERALLOY ; CHEMISTRY
Indexed BySCI
Language英语
WOS IDWOS:000415718800011
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28623
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Jia, YY,Li, ZF,Ye, XX,et al. Effect of Cr contents on the diffusion behavior of Te in Ni-based alloy[J]. JOURNAL OF NUCLEAR MATERIALS,2017,497(-):101-106.
APA Jia, YY.,Li, ZF.,Ye, XX.,Liu, RD.,Leng, B.,...&Li, ZJ.(2017).Effect of Cr contents on the diffusion behavior of Te in Ni-based alloy.JOURNAL OF NUCLEAR MATERIALS,497(-),101-106.
MLA Jia, YY,et al."Effect of Cr contents on the diffusion behavior of Te in Ni-based alloy".JOURNAL OF NUCLEAR MATERIALS 497.-(2017):101-106.
Files in This Item: Download All
File Name/Size DocType Version Access License
Effect of Cr content(1930KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Jia, YY]'s Articles
[Li, ZF]'s Articles
[Ye, XX]'s Articles
Baidu academic
Similar articles in Baidu academic
[Jia, YY]'s Articles
[Li, ZF]'s Articles
[Ye, XX]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Jia, YY]'s Articles
[Li, ZF]'s Articles
[Ye, XX]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Effect of Cr contents on the diffusion behavior of Te in Ni-based alloy.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.