| The role of surface film on the critical flow velocity for erosion-corrosion of pure titanium | |
| Wang, Z. B.1; Zheng, Y. G.1; Yi, J. Z.1,2 | |
| Corresponding Author | Zheng, Y. G.(ygzheng@imr.ac.cn) |
| 2019-05-01 | |
| Source Publication | TRIBOLOGY INTERNATIONAL
 |
| ISSN | 0301-679X |
| Volume | 133Pages:67-72 |
| Abstract | One 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. |
| Keyword | Erosion-corrosion Critical flow velocity Surface film Depassivation-repassivation |
| Funding Organization | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| DOI | 10.1016/j.triboint.2019.01.006 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51801218] ; National Natural Science Foundation of China[51571200] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA13040500] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Mechanical |
| WOS ID | WOS:000458943500008 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/131966 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zheng, Y. G. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China |
| 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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