IMR OpenIR
Effect of groove depth on the slurry erosion of V-shaped grooved surfaces
Chen, Z. X.1,2; Hu, H. X.1; Guo, X. M.2; Zheng, Y. G.1
Corresponding AuthorHu, H. X.(hxhu@imr.ac.cn) ; Zheng, Y. G.(ygzheng@imr.ac.cn)
2022-01-15
Source PublicationWEAR
ISSN0043-1648
Volume488Pages:14
AbstractThe fabrication of microstructures on surfaces is an innovative approach to relieve slurry erosion. Understanding the effect of the dimensions of the surface microstructure on slurry erosion can inspire new surface treatments, not only for small flow-handling parts but also for large water conservancy facilities. Our previous work has studied the effect of the micro structure's shape on slurry erosion. As an extension, the dimension was investigated based on the selected groove structure. Five V-shaped grooved surface microstructures (V1-V5) with different depths (1-5 mm, respectively) were designed. The effect of groove depth on erosion was studied by scanning electron microscopy observation and mass loss, roughness, and residual stress measurements at a slurry speed of 8.29 m s-1, particle size of 75-150 mesh, and sand concentration of 3 wt%. The results showed that the best erosion resistance occurred at a critical depth of 3 mm. This was partially due to the low-velocity component in the flow direction and the upward velocity component perpendicular to the flow direction. This velocity distribution inhibited the impingement erosion of the particles inside the groove and simultaneously slowed the incoming particles into the groove. The groove surfaces underwent the most severe erosion, while the top surfaces experienced less erosion, which was relieved by multiple vortices induced by the grooves. The erosion rates of V3, V4, and V5 were lower than those of V1 and V2. The erosion mechanisms are summarized to guide the design optimization of surface microstructures.
KeywordSlurry erosion Surface microstructure depth V-shaped groove Vortex Impact angle Fluid simulatio
DOI10.1016/j.wear.2021.204133
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
WOS IDWOS:000713246800001
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167183
Collection中国科学院金属研究所
Corresponding AuthorHu, H. X.; Zheng, Y. G.
Affiliation1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
2.Shenyang Aerosp Univ, Sch Mat Sci & Engn, Shenyang 110136, Peoples R China
Recommended Citation
GB/T 7714
Chen, Z. X.,Hu, H. X.,Guo, X. M.,et al. Effect of groove depth on the slurry erosion of V-shaped grooved surfaces[J]. WEAR,2022,488:14.
APA Chen, Z. X.,Hu, H. X.,Guo, X. M.,&Zheng, Y. G..(2022).Effect of groove depth on the slurry erosion of V-shaped grooved surfaces.WEAR,488,14.
MLA Chen, Z. X.,et al."Effect of groove depth on the slurry erosion of V-shaped grooved surfaces".WEAR 488(2022):14.
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