The present work analyses the cavitation behavior of steel samples with pearlitic, bainitic, martensitic, and tempered martensitic microstructures, made from an eutectoid rail steel with the help of suitable heat treatments. The cavitation erosion tests of the steel samples were performed in 3.5 wt.% NaCl solution using a vibratory device as per ASTM-G32-16. The cavitation erosion resistance of pearlitic, tempered martensitic, and bainitic steel was found to be 1.69, 2.42, and 2.80 times higher than that of the martensitic steel, respectively. Furthermore, the resistance of the heat-treated steels against cavitation erosion increases with the increase in the average of the normalized residual strain and maximum shear strength. Micro-mechanism of cavitation depends on the way the propagating sound waves generated after bursting of the fluid bubbles interacts with the microstructural constituents of the different microstructures.

目前的工作分析了具有珠光体、贝氏体、马氏体和回火马氏体显微组织的钢样品的空化行为，这些钢样品由共析轨道钢在适当热处理的帮助下制成。根据 ASTM-G32-16，使用振动装置在 3.5 wt.% NaCl 溶液中进行钢样品的气蚀测试。珠光体钢、回火马氏体钢和贝氏体钢的抗空蚀性分别是马氏体钢的 1.69、2.42 和 2.80 倍。此外，热处理钢对气蚀的抵抗力随着归一化残余应变和最大剪切强度平均值的增加而增加。