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The role of surface film on the critical flow velocity for erosion-corrosion of pure titanium
Wang, Z. B.; Zheng, Y. G.; Yi, J. Z.
2019-05-01
Source PublicationTRIBOLOGY INTERNATIONAL
ISSN0301-679X
Volume133Pages:67-72
AbstractOne of the key issues in clarifying the mechanism of critical flow velocity (CFV) for erosion-corrosion is whether the surface film is ruptured mechanically below the CFV. This paper aims to address such an issue for titanium by using ion-labelling and colour-labelling methods. The results show that the pre-labelled ion and colour cannot be detected on the titanium surface after impingement in liquid-solid two-phase fluid below the CFV, suggesting the surface film has been ruptured mechanically. Accordingly, the phenomenon of CFV is attributed to the competition between the depassivation process induced by solid particle impacting and the subsequent repassivation process. Furthermore, a critical criterion is proposed and the expressions of depassivation time and repassivation time are derived and discussed.
KeywordErosion-corrosion Critical flow velocity Surface film Depassivation-repassivation
Indexed BySCI
Language英语
WOS IDWOS:000458943500008
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81157
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Wang, Z. B.,Zheng, Y. G.,Yi, J. Z.. The role of surface film on the critical flow velocity for erosion-corrosion of pure titanium[J]. TRIBOLOGY INTERNATIONAL,2019,133:67-72.
APA Wang, Z. B.,Zheng, Y. G.,&Yi, J. Z..(2019).The role of surface film on the critical flow velocity for erosion-corrosion of pure titanium.TRIBOLOGY INTERNATIONAL,133,67-72.
MLA Wang, Z. B.,et al."The role of surface film on the critical flow velocity for erosion-corrosion of pure titanium".TRIBOLOGY INTERNATIONAL 133(2019):67-72.
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