Analysis of cavitation erosion resistance of cast iron and nonferrous metals based on database and comparison with carbon steel data

Evaluation of Cavitation Erosion Behavior of Commercial Steel Grades Used in the Design of Fluid Machinery

“…[50] Many research studies have agreed that cavitation erosion damage strongly depends on the hardness alterations across the sample surface. [34,51] As the material is exposed to great impulsive pressures by the collapse of cavitation bubbles, the successive hydrodynamic impacts lead to a progressive work hardening resulting in the strain accumulation in the vicinity of the impact zone. Also, the formation of new dislocations causes dislocation blockade and motion restriction while the dislocation density increases especially along the grain boundaries and along the eroded surface, resulting in a higher local hardness.…”

“…Several parameters are known to have a major influence on the erosive potential of the cavitation bubbles: (i) the viscous and surface tension forces of the liquid environment, (ii) the distance of the bubble to the wall interface, (iii) the maximum size of the bubble prior to collapse, and (iv) the adverse pressure gradient to which the bubble is subjected and which causes its collapse. [11] It has been reported that the cavitation erosion resistance of materials, even if it can be regarded as an independent mechanical property of the material itself, [12] depends on mechanical properties and characteristics such as strain energy, [13] ultimate strength, [14] hardness, [15] roughness [16] as well as the strain hardening ability of the material. [17] Thus, extensive research has been carried out elsewhere [18][19][20][21][22][23] in order to find effective correlations between the cavitation erosion rate and the physical properties of the tested fluids as well as the cavitation erosion rate and the mechanical properties of the tested materials.…”

Cavitation Erosion Resistance Assessment and Comparison of Three Francis Turbine Runner Materials

“…The ASTM G32 standardized vibratory cavitation apparatus creates a cavitation cloud in stationary liquid with a vibrating horn (ASTM G32-10, Standard Test Method for Cavitation Erosion Using Vibratory Apparatus [10]). Hattori, Ishikura, and Zhang [11], Hattori and Kitagawa [12], and Hattori and Ishikura [13] used this method to compare the erosion rates of a wide range of different metals. Kendrick, Light, and Caccese [14] used it to compare metals and composites.…”

Influence of the fabrication process of copper matrix composites on cavitation erosion resistance

“…They proved that the cavitation erosion resistance depends on mechanical parameters (hardness, tensile strength, Young's modulus, fatigue strength), microstructure (grain size, some material defects, present phases), and also on surface roughness [13][14][15][16]. Hence, many studies investigated the cavitation erosion resistance of different materials such as gray cast irons, ductile irons, stainless steels, nonferrous metals and alloys such as aluminum and copper alloys [17][18][19][20][21].…”