Effect of micro-particles on cavitation erosion of Ti6Al4V alloy in sulfuric acid solution

Abstract

The influences of micro-particles on ultrasonic cavitation erosion of Ti6Al4V alloy in 0.1M HSO solution were investigated using mass loss weight, scanning electron microscopy (SEM) and white light interferometer. Mass loss results revealed that the cavitation erosion damage obviously decreased with increasing particle size and mass concentration. Open circuit potential recorded during cavitation erosion shifted to positive direction with the decreased mass loss. Meanwhile, the mass loss sharply decreased with applying a positive potential during the entire ultrasonic cavitation erosion, and the relationship between the open circuit potential and the cavitation erosion resistance was discussed.

A single oscillating bubble in liquids with high Mach number

“…Bubble dynamics is widely existing in contemporary science and technology (e.g. cavitation erosion in hydraulic machinery [1] , [2] , underwater explosion [3] , [4] , [5] , biomedical applications [6] , [7] , [8] , [9] , [10] , [11] , ultrasonic cleaning [12] , [13] , [14] , [15] and sonochemistry [16] , [17] , [18] , [19] ). The violent expansion and collapse of bubbles play an important role in the applications of bubble dynamics.…”

“…The violent expansion and collapse of bubbles play an important role in the applications of bubble dynamics. For example, the sharp collapse of the bubble will seriously affect the safe and efficient operation of hydraulic machinery [1] , [2] . The destructive collapse of the bubbles generated by the underwater explosion can cause considerable damage to the surrounding targets [3] , [4] , [5] .…”