{"title":"Experimental study on erosion of hydro-turbine grade steels due to solid particle impact","authors":"Shubham Sharma, B. Gandhi","doi":"10.1080/17515831.2021.2005995","DOIUrl":null,"url":null,"abstract":"ABSTRACT The present work has been performed to understand the erosion of hydro-turbine steels due to the impact of suspended sediment using a high-speed pot tester. Experiments have been performed at five different velocities of 13–32 m/s and four different mean particle sizes of 143–362.5 μm for the sand concentration of 3000 ppm. The orientation angle of the wear specimens was varied from 15° to 90° using an angular disc. Correlations for cutting and deformation have been developed to estimate the total erosion wear. The erosion mechanisms are also studied by scanning electron micrographic analysis of the eroded surface. The velocity exponent for CA6NM steel is observed as 2.07 and 2.14 for cutting and deformation wear rates, respectively, significantly higher than that observed at low velocity ranges. The correlation developed may be further used for numerical estimation of erosion. GRAPHICAL ABSTRACT","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":"16 1","pages":"211 - 225"},"PeriodicalIF":1.6000,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tribology - Materials, Surfaces & Interfaces","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/17515831.2021.2005995","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
引用次数: 1
Abstract
ABSTRACT The present work has been performed to understand the erosion of hydro-turbine steels due to the impact of suspended sediment using a high-speed pot tester. Experiments have been performed at five different velocities of 13–32 m/s and four different mean particle sizes of 143–362.5 μm for the sand concentration of 3000 ppm. The orientation angle of the wear specimens was varied from 15° to 90° using an angular disc. Correlations for cutting and deformation have been developed to estimate the total erosion wear. The erosion mechanisms are also studied by scanning electron micrographic analysis of the eroded surface. The velocity exponent for CA6NM steel is observed as 2.07 and 2.14 for cutting and deformation wear rates, respectively, significantly higher than that observed at low velocity ranges. The correlation developed may be further used for numerical estimation of erosion. GRAPHICAL ABSTRACT
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
