Effect of groove depth on the slurry erosion of V-shaped grooved surfaces

doi:10.1016/j.wear.2021.204133

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
通讯作者	Hu, H. X.(hxhu@imr.ac.cn) ; Zheng, Y. G.(ygzheng@imr.ac.cn)
	2022-01-15
发表期刊	WEAR
ISSN	0043-1648
卷号	488 页码:14
摘要	The 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.
关键词	Slurry erosion Surface microstructure depth V-shaped groove Vortex Impact angle Fluid simulatio
DOI	10.1016/j.wear.2021.204133
收录类别	SCI
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000713246800001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/167183
专题	中国科学院金属研究所
通讯作者	Hu, H. X.; Zheng, Y. G.
作者单位	1.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
推荐引用方式 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.