Vibratory cavitation tests at elevated temperature

Abstract

Vibratory cavitation erosion curves in tap water are presented for different materials, suppression pressures, amplitudes and temperatures. At the highest temperature tested (230 °F (110 °C)), erosion is still substantial. Damage is found to decrease with increasing temperature above the maximum damage temperature, at least to this temperature (230 °F), for all materials tested. Amplitude plays a great role in the maximum damage temperature, especially for cast iron. Two distinct maximum mean depth of penetration rate MDPRmax points were found for 316 stainless steel and 1018 carbon steel at 230 °F. There is a black oxide outer rim on each 1018 carbon steel specimen only at the highest temperature, which is probably due to corrosion effects at the higher temperature.