Slurry pump blade easy-cavitation region laser compounding reinforcing method

The invention provides a slurry pump blade easy-cavitation region laser compounding reinforcing method, which comprises the following steps of performing laser microtexture formation on a slurry pumpblade easy-cavitation region; preparing high-performance alloy powder; laying the high-performance alloy powder in the microtexture region; performing laser alloy treatment, laser impact reinforcing and optimization processes. By using a series of processes, the slurry pump blade forms a plurality of concave pits through the laser microtexture, high-performance alloy powder is totally and fully laid in the microtexture region; next, laser alloy treatment is performed; next, the laser impact reinforcement is performed to improve the residue pressure stress value and the stress distribution uniformity of the slurry pump blade easy-cavitation region; finally, the electrolysis polishing process is performed; a flat and bright polishing surface is formed on the slurry pump blade; by the laser compounding reinforcing me