【Corrosion Technology Edition】Daily Question 20170809: What is cavitation corrosion?
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To boost the popularity of the Mechanical Equipment Corrosion Technology section, enhance communication among users, and enable everyone to learn together, make progress together, and improve together, the [One Question per Day] activity has been launched. Reward rules: 3 wealth points for replying, 10 wealth points for a correct answer. This topic is valid for two days; no scoring will be given after that. Term explanation: What is cavitation corrosion? Cavitation corrosion (cavitation and erosion) is a special form of erosion corrosion; it results from the collapse of bubbles in the liquid near the metal surface, leading to surface roughening and the formation of numerous crater-like depressions of varying diameters, ultimately causing the loss of the material’s functional properties. ================================== 【Mechanical Area】Recruitment for moderators and technicians – applications and referrals are welcome.【Valid indefinitely】If you’re interested, come ahead! http://bbs.hcbbs.com/thread-1568748-1-1.html
Cavitation corrosion is a type of local corrosion that occurs when a flowing fluid moves at high speed relative to a metal component, resulting in an uneven pressure distribution within the fluid; this leads to the repeated formation and collapse of bubbles.
The formation of cavitation corrosion: The corrosive damage caused by high-speed fluids, or fluids containing suspended solid particles and bubbles, striking the metal surface continuously is known as impact corrosion
Cavitation corrosion is a type of local corrosion that occurs when a flowing fluid moves at high speed relative to a metal component, resulting in an uneven pressure distribution within the fluid; this leads to the repeated formation and collapse of bubbles.
Cavitation corrosion, abbreviated as cavitation or erosion, is a special form of wear corrosion. The presence of bubbles in the high-speed fluid leads to severe wear and corrosion. Bubbles form due to turbulence in the liquid or temperature changes that cause local pressure drops. These bubbles contain only a small amount of water vapor and exist for a very short time. When the bubbles burst, shock wave pressures as high as 4000 atm can be generated, which can destroy the metal protective layer, cause plastic deformation, and even tear apart the metal particles. The bare metal at the membrane breach is corroded, followed by the regrowth of a membrane. New bubbles form at the same spot and then burst immediately; this process repeats itself, resulting in dense and deep pores on the metal surface, giving it a very rough appearance. Pump impellers and hydraulic turbines often suffer from cavitation.
Cavitation corrosion occurs when the corrosive fluid moves at high speed relative to the metal component, resulting in an uneven pressure distribution in the fluid; the repeated formation and collapse of bubbles lead to localized corrosion
Cavitation corrosion (cavitation and erosion) is a special form of erosion corrosion; it results from the collapse of bubbles in the liquid near the metal surface, leading to surface roughening and the formation of numerous crater-like depressions of varying diameters, ultimately causing the loss of the material’s functional properties.
Cavitation corrosion is a type of local corrosion that occurs when the corrosive fluid moves at high speed relative to the metal component, resulting in an uneven pressure distribution in the fluid; this leads to repeated formation and collapse of bubbles.
Local corrosion occurs when the corrosive fluid moves at high speed relative to the metal components, resulting in an uneven pressure distribution in the fluid; the repeated formation and collapse of bubbles lead to this phenomenon.
Local corrosion occurs when the corrosive fluid moves at high speed relative to the metal components, resulting in an uneven pressure distribution in the fluid; the repeated formation and collapse of bubbles lead to this phenomenon.
Local corrosion occurs when the corrosive fluid moves at high speed relative to the metal components, resulting in an uneven pressure distribution in the fluid; the repeated formation and collapse of bubbles lead to this phenomenon.