cavitation erosion

cavitation erosion

[‚kav·ə′tā·shən i′rō·zhən]
(metallurgy)
Attack of metal surfaces caused by the collapse of cavitation bubbles on the surface of the liquid and characterized by pitting. Also known as cavitation corrosion; cavitation damage.
References in periodicals archive ?
The penetration of cavitation erosion was analysed using measurement of the external roughness.
Scientific researches, done in special cavitation laboratories, shows that damage level produced by cavitation erosion depends, both by cavitaion intensity, specific to hydrodynamics of the cavitating flow (which includes nature and physical properties of the liquid) and, by the nature of the material (Bordeasu 1997).
But, different pieces made of stainless steels, with two phases austenite and ferrite, is compulsory analyzed in order to establish the cavitation erosion behavior.
Figure 5 shows the typical curve of the cavitation erosion (erosion rate vs cavitation attack time).
For scientists and producers of hydraulic equipments (as well as maritime or fluvial ships), the cavitation erosion phenomena remain a permanent concern, because it creates unexpected geometry modifications of the elements in contact with the liquid, with serious implications upon the performance and the reliability of the equipment [Bordea[degrees]u (1997), Frank & Michel (1995)].
Contributions upon the cavitation erosion of two cast irons used in manufacturing control valves, Revista Metalurgia International vol.
Distinct characteristics of the cavitation erosion found on the soft aluminum alloy include three, differently-sized types of erosion pits; a large 1-2 mm round pit with a smooth surface, a smaller 100?
To support the results obtained in the Haynesville field evaluation and to verify cavitation erosion potential under controlled laboratory conditions, Dow conducted Motor Turbine Union Knocking Chamber Cavitation Tests under the conditions outlined in Table 2.
Application of Power Ultrasound in Cavitation Erosion Testing of Nano-Ceramic Particle/Polymer Composites
The cavitation erosion behavior of metallic materials is investigated in laboratory conditions through tests performed on various facilities: vibratory apparatus, high-pressure water jet systems, cavitation tunnels, rotating disk devices.
Cavitation erosion can affect the durability of the injection system to levels that replacement of mechanical parts only after hours of operation is demanded.
The 20 papers here, about half of the presentations, discuss such topics as the formation and occurrence of non-metallic inclusions of silicon-doped steel during continuous casting, effects of carbon migration on sulfide stress corrosion cracking behavior of dissimilar joints in a wet hydrogen sulfide environment, the gas tungsten arc cladding of titanium-nickel overlays onto the carbon steel and stainless steel for cavitation erosion resistance, the electromagnetic characteristics of iron-based microwave absorbing materials, and surface-texturing single-crystalline silicon wafers.