Nov 16, 2018 · The cavitation erosion and corrosion characteristic of a nickel-free high-nitrogen stainless steel (HNSS) in distilled water and 0.5 mol/L HCl solution were investigated by conducting gravimetric and electrochemical measurements, including corrosion potential, polarization curves and electrochemical impedance spectroscopy, and the eroded/corroded surface was observed by
Cavitation corrosionCavitation corrosion of a deaerator Impingement. Impingement attack is related to cavitation damage, and has been defined as localized erosion-corrosion caused by turbulence or impinging flow. Entrained air bubbles tend to accelerate this action, as do suspended solids.
The cavitation erosion characteristic of laser surface melted 316L stainless steel was studied by means of a 20 kHz ultrasonic vibrator at a peak-to-peak amplitude of 30 m in 3.5% NaCl solution at temperatures 23° and 50 °C. Its pitting corrosion behaviour was also studied at 23 °C by electrochemical method.
Effect of Passive Film on Cavitation Corrosion Behavior of cavitation erosioncorrosion behavior of the materials, produced an intermittent pressure field, thus inducing the periodic growth and collapse of the cavitation bubbles. Thus, the current study carried out the pulsed cavitation erosion tests by employing 3secon/3
Effect of ultrasonic cavitation erosion on corrosion The effect of ultrasonic cavitation erosion on electrochemical corrosion behavior of high-velocity oxygen-fuel (HVOF) sprayed near-nanostructured WC-10Co-4Cr coating in 3.5 wt.% NaCl solution, was investigated using free corrosion potential, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) in comparison with stainless steel 1Cr18Ni9Ti.
Aug 29, 2006 · The corrosion behaviour of the Q235 carbon steel in simulation solution of Yangtze, Yellow and Talimu river of China was investigated by mass loss, electrochemical measurements (polarization curves, linear polarization resistance and electrochemical impedance spectroscopy) and the damaged surfaces were observed by a scanning electron microscope (SEM) under static, cavitation erosion
What is Cavitation Erosion? - Definition from CorrosionpediaSep 18, 2013 · Low pressure (below the saturated vapor pressure) is generated hydrodynamically, due to various flow parameters, such as liquid viscosity, temperature, pressure and nature of flow. This deterioration is initiated by a sudden surge of bubbles hammering the surface, resulting in deformation, as well as pitting. Cavitation erosion can occur on the surfaces of metals and nonmetals.Exceptionally high cavitation erosion and corrosion Mar 01, 2018 · Cavitation erosion and corrosion of structural materials are serious concerns for marine and offshore industries. Durability and performance of marine components are severely impaired due to degradation from erosion and corrosion. Utilization of advanced structural materials can play a vital role in limiting such degradation.