DISSOLUTION FACILITATING LOCAL PLASTIC DEFORMATION FOR BRASS IN AMMONIA SOLUTION
黄铜在氨水中的溶解过程对其局部塑性变形的促进作用

The variations of displacement field and strain field around notch tip of brass specimen during stress corrosion crack in 1mol/L NH4OH 5g/L CuC12 solution were investigated by the laser moire interferometry method. The results indicate that the anodic dissolution (corrosion) increases the plastic zone around notch tip of specimen and the plastic deformation amounts of the various points in plastic zone i.e. the anodic dissolution can facilitate the local plastic deformation around the notch tip of specimen.