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Cavitation erosion causes serious problems for hydraulic machinery. Selective laser melting (SLM), is a type of additive manufacturing that can produce metal parts directly and it has begun to be used in various industrial settings. However, the erosion properties of the SLM processed parts have only rarely been reported. The paper addresses the cavitation erosion behavior of AlSi10Mg samples fabricated...
High interstitial austenitic stainless steels have been shown to exhibit superior mechanical properties, which include a unique combination of high strength and high toughness, due to the positive effects of the combination of carbon and nitrogen in solid solution. By the addition of molybdenum, a significant improvement of their localized corrosion resistance has been achieved. Further strengthening...
Comparisons between the cavitation erosion (CE) in pure water and cavitation-silt erosion (CSE) in sand suspensions were carried out experimentally on 304 stainless steel. The damage was evaluated by mass loss, scanning electron microscopy, roughness and surface residual stress. The effects of the particles and the sand concentrations on the CSE were analyzed. The results show that cumulative mass...
Results of investigations of multilayer CrN/CrCN coating – X6CrNiTi18-10 stainless steel substrate system exposed to cavitation degradation are presented. CrN/CrCN coating with six CrN + CrCN bilayers was deposited using cathodic arc evaporation PVD method. Cavitation erosion tests showed that deposition of CrN/CrCN coating increased incubation period, but cumulative mass loss of the CrN/CrCN – X6CrNiTi18-10...
CaviTec® is an alloy known for its high resistance to cavitation erosion. Under cavitation, this material absorbs impact energies and undergoes a structural phase transformation. This attribute gives rise to a long incubation period before erosion and material loss take place. In this work, CaviTec powders were prepared by water atomization and mechanical alloying. Coatings were deposited on 304-type...
This paper looks into the influences of solution treatment on the cavitation erosion and corrosion resistances of a CrMnNi austenitic stainless steel. Cavitation erosion pit formation is mainly associated with twin boundaries, slip lines and martensite traces (ε and α′). These pits subsequently grow both across slip lines and martensite traces and along twin boundaries, eventually coalescing to form...
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