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Cavitation is a significant cause of wear in some engineering contexts. Collapsing voids that implode near to a metal surface cause cyclic stress through repeated implosion. This results in surface fatigue of the metal, causing a type of wear also called "cavitation".
Wear is the damaging, ... Other, less common types of wear are cavitation and diffusive wear. [6] Wear stages. Under nominal operation conditions, ...
Wear is a mechanical material degradation process occurring on rubbing or impacting surfaces, while corrosion involves chemical or electrochemical reactions of the material. Corrosion may accelerate wear and wear may accelerate corrosion. [2] One then speaks of corrosion accelerated wear or wear accelerated corrosion.
Cavitation is the unstable unhindered expansion of a microscopic void in a solid elastomer under the action of tensile hydrostatic stresses. This can occur whenever the hydrostatic tension exceeds 5/6 of Young's modulus. [1] The cavitation phenomenon may manifest in any of the following situations:
Cavitation is the formation of vapor bubbles in water near a moving propeller blade in regions of very low pressure. It can occur if an attempt is made to transmit too much power through the screw, or if the propeller is operating at a very high speed. Cavitation can waste power, create vibration and wear, and cause damage to the propeller.
Cavitation wear is a form of wear where the erosive medium or counter-body is a fluid. Corrosion may be included in wear phenomenons, but the damage is amplified and performed by chemical reactions rather than mechanical action. Mmyotis (^^o^^) 17:10, 19 November 2015 (UTC)
Tribology is the science and engineering of understanding friction, lubrication and wear phenomena for interacting surfaces in relative motion.It is highly interdisciplinary, drawing on many academic fields, including physics, chemistry, materials science, mathematics, biology and engineering. [1]
Cavitation—the net positive suction head of the system is too low for the selected pump; Wear of the impeller—can be worsened by suspended solids or cavitation; Corrosion inside the pump caused by the fluid properties; Overheating due to low flow; Leakage along rotating shaft.