Investigation of erosion behavior of 304 stainless steel under solid–liquid jet flow impinging at 30°  

作　　者：Yan-Lin Zhao Chun-Yan Tang Jun Yao Zi-Hua Zeng Shi-Gang Dong 

机构地区：[1]Beijing Key Laboratory of Process Fluid Filtration and Separation,College of Mechanical and Transportation Engineering,China University of Petroleum-Beijing,Beijing 102249,People’s Republic of China [2]College of Energy,Xiamen University,Xiamen 361005,People’s Republic of China

出　　处：《Petroleum Science》2020年第4期1135-1150,共16页石油科学（英文版）

基　　金：supported by National Natural Science Foundation of China (Nos.51776225;51876221);High-end Foreign Expert Introduction Project (G20190001270;B18054)。

摘　　要：This work carried out liquid-solid two-phase jet experiments and simulations to study the erosion behavior of 304 stainless steel at 30° impingement.The single-phase impinging jet was simulated using dense grid by one-way coupling of solid phase due to its dilute distribution.The simulation results agreed well with experiments.It was found that after impinging particle attrition occurred and particles became round with decreasing length-ratio and particle breakage occurred along the "long" direction.Both experiment and simulations found that the erosion generated on the sample could be divided into three regions that were nominated as stagnant region,cutting transition region and wall jet region.Most particle-wall impacts were found to occur in the cutting transition region and the wall jet region.In the cutting transition region,holes and lip-shaped hogbacks were generated in the same direction as the flow imping.In the wall jet region,furrows and grooves were generated.The averaged grooves depth tended to become constant with the progress of impinging and reach the steady state of erosion in the end.In addition,it was found that impinging effect increased erosion and anti-wear rate.

关 键 词：Solid–liquid flow Impinging jet EROSION EXPERIMENT Numerical simulation 

分 类 号：TG174.3[金属学及工艺—金属表面处理]