排灌机械工程学报

作者：ZHONG Qinqin,QIAN Zhongdong

单位：State key laboratory of Water resources engineering and Management, Hydropower Research Center for Himalaya Region, Wuhan University, Wuhan, Hubei 430072, China

关键词：erosion wear,wear morphology,hydrofoil,hydraulic machinery

基金： 

Erosion wear is a major challenge for hydraulic machinery operating in sedimentladen rivers. The results shows four main wear morphologies on the hydrofoil which includes pits, smooth grooves, sharp grooves, and scratches. Additionally, we could also observe iridescent rings and ripple patterns. On the leading edge of the hydrofoil, we can mainly observe pits and smooth grooves. We as well discover all four wear morphologies and iridescent rings in the middle. on the trailing edge, we see pits, sharp grooves, and ripple patterns. The dominant wear mechanisms and sub-mechanisms on the hydrofoil are surface fatigue (indenting), abrasion (microploughing, micro-cutting, and sliding), and tribochemical reactions (heating).

来源：2024年第8期

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