Cooling Sea Water pump after a 10861 running hours inspection and maintenance. Impeller found to be very bad along with the wear ring.
Metal erosion is done by mechanical action on the metal surface by particles rapidly moving fluids grains of solids, gas bubbles and etc. Erosion intensity depends on the metal uniformity, hardness and structure. To increase the erosion resistance in a metal housing alloying components are utilized, thus increasing metal strength and corrosion resistance and producing a superficial consolidation.