In some industrial situations, components are subject to repetitive impact in the presence of a slurry. A novel repetitive impact-with-slurry test rig was developed to evaluate the behaviour of a wide range of engineering materials in such conditions. The test materials could be categorised into five main groups – heat treated steels, stainless steels, chromium cast irons, hardfacing coatings and superalloys. Three-dimensional surface topography was used to quantify the depths and volumes of the produced wear scars. Post-test metallurgical examination was also conducted to further evaluate the wear processes. The wear mechanisms could be split into two main groups of materials; ductile materials were observed to plastically deform and hard/brittle materials demonstrated cracking/spalling mechanisms. Hardened martensitic-type materials exhibited the greatest resistance to repetitive impact wear.

在某些工业情况下，在存在浆料的情况下，组件会受到重复性的影响。开发了一种新型的重复式泥浆冲击试验台，以评估在这种条件下各种工程材料的性能。测试材料可分为五大类-热处理钢，不锈钢，铬铸铁，表面硬化涂层和高温合金。三维表面形貌用于量化产生的磨损痕迹的深度和体积。还进行了测试后的冶金检查，以进一步评估磨损过程。磨损机制可以分为两大类材料：观察到易延展材料塑性变形，坚硬/脆性材料表现出开裂/剥落机理。