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Water-Jet Erosion of Grade-A Ship Steel: Experimental Research

机译：级船舶钢水喷射侵蚀：实验研究

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A water-jet erosion test was carried out on grade-A ship steel to study the interaction and erosion mechanism of the water jet on the steel surface. When the water jet impacted, a STSS-1 stress-detection module was used to collect the dynamic strain signal on the rear of the ship’s plate, and a scanning electron microscope, transmission electron microscope, X-ray diffractometer, and other equipment were used to analyze the microstructure and phase of the grade-A ship steel before impact. The surface morphology of the material after impact was studied and analyzed. The impact stress of the water jet on the grade-A steel was an alternating stress, and the jet pressure decayed in the radial direction. The material surface was fatigued under the action of the jet alternating stress. After the water-jet erosion, the central area of the grade-A steel was dominated by an elongated cementite hard phase, and the peripheral area had a pearlite structure. A model for the jet erosion and peeling of grade-A ship steel was established to clarify the mechanism of erosion by the water jet.
机译：在级船钢上进行了水射流侵蚀试验，以研究水射流在钢表面上的相互作用和侵蚀机理。当冲击水射流时，使用STS-1应力检测模块来收集船板后部的动态应变信号，并且使用扫描电子显微镜，透射电子显微镜，X射线衍射仪和其他设备分析抗冲击前船钢的微观结构和相位。研究和分析了撞击后材料的表面形态。水射流对钢钢上的冲击应力是交流应力，并且喷射压力在径向方向上衰减。在射流交替应力的作用下酸化材料表面。在水射流侵蚀之后，级钢的中心区域由细长的渗碳化硬相管制，周围区域具有珠光体结构。建立了射流侵蚀和剥离型船钢的模型，以阐明水射流的侵蚀机制。

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