On the critical flow velocity for erosion-corrosion of Ni-based alloys in a saline-sand solution

doi:10.1016/j.wear.2020.203417

CORC > 金属研究所 > 中国科学院金属研究所

	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.1; Wang, Z. B.1; Zheng, Y. G.1
刊名	WEAR
	2020-10-15
卷号	458 页码:10
关键词	Ni-based alloy Erosion-corrosion Electrochemistry Passivation Critical flow velocity
ISSN号	0043-1648
DOI	10.1016/j.wear.2020.203417
通讯作者	Zheng, Y. G.(ygzheng@imr.ac.cn)
英文摘要	Critical 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.
资助项目	National Natural Science Foundation of China[51571200]
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000572435600001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/140625]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zheng, Y. G.
作者单位	1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China 2.Shenyang Aerosp Univ, Sch Mat Sci & Engn, 37 Daoyi South Ave, Shenyang 110136, Peoples R China
推荐引用方式 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.