Surface integrity of heat treatable magnesium alloy AZ80A after cavitation peening

The present paper aims to investigate topographical behavior of precipitation hardened magnesium alloy AZ80A subjected cavitation peening. introduction surface residual compressive stress is the main feature this new method, which different from traditional mechanical processing method and also key factor leading good service performance metal material surface. tested was heat treatable AZ80A. Magnesium alloys have lowest density among common non-ferrous so are very important in reducing weight used many fields, including aviation, aerospace, electronics automobile industries. After treatment alloy, peening performed, all cases raises hardness specimens. Cavitation has a beneficial effect on stresses, as they increase cases. It should be noted that specimens throughout entire measurement depth stresses stayed nature. They especially expressed case artificial aging, where we achieve maximum specimen amount ?220 MPa. most negative thing about such process roughness after hardening it greatly increased