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On the critical flow velocity for erosion-corrosion of Ni-based alloys in a saline-sand solution
Yi, J. Z.1,2; Hu, H. X.2; Wang, Z. B.2; Zheng, Y. G.2
Corresponding AuthorZheng, Y. G.(ygzheng@imr.ac.cn)
2020-10-15
Source PublicationWEAR
ISSN0043-1648
Volume458Pages:10
AbstractCritical flow velocity (CFV) is an effective parameter to evaluate the erosion-corrosion property of passive material. The CFV accumulation for different passive materials contributes to the material selection of hydraulic equipment applied in multiphase flow environments. In this paper, the CFV behaviors of Inconel 600, Inconel 625 and Incoloy 825 under impingement by a saline-sand solution have been investigated by potentiostatic polarization methods and mass loss tests. In addition, the repassivation behaviors of three Ni-based alloys were studied by a self-made indentation apparatus to clarify the CFV mechanism for erosion-corrosion. The results show that the CFV values are 13 m/s for Inconel 600, 14 m/s for Inconel 625 and 14 m/s for Incoloy 825, respectively. The higher CFV values for Inconel 625 and Incoloy 825 are mainly based on their higher repassivation rates compared with Inconel 600. The addition of Cr and Mo elements for Ni-based alloy can remarkably improve the repassivation rate, and then increase the CFV value.
KeywordNi-based alloy Erosion-corrosion Electrochemistry Passivation Critical flow velocity
Funding OrganizationNational Natural Science Foundation of China
DOI10.1016/j.wear.2020.203417
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51571200]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
WOS IDWOS:000572435600001
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140626
Collection中国科学院金属研究所
Corresponding AuthorZheng, Y. G.
Affiliation1.Shenyang Aerosp Univ, Sch Mat Sci & Engn, 37 Daoyi South Ave, Shenyang 110136, Peoples R China
2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Yi, J. Z.,Hu, H. X.,Wang, Z. B.,et al. On the critical flow velocity for erosion-corrosion of Ni-based alloys in a saline-sand solution[J]. WEAR,2020,458:10.
APA Yi, J. Z.,Hu, H. X.,Wang, Z. B.,&Zheng, Y. G..(2020).On the critical flow velocity for erosion-corrosion of Ni-based alloys in a saline-sand solution.WEAR,458,10.
MLA Yi, J. Z.,et al."On the critical flow velocity for erosion-corrosion of Ni-based alloys in a saline-sand solution".WEAR 458(2020):10.
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