The influence of surface plastic deformation obtained by shot-peening and roller
burnishing on the fatigue, corrosion fatigue of an aluminum alloy D16T was investigated. The
investigations of fatigue and corrosion fatigue were conducted on the specimens with working
part: diameter - 10 mm and length - 55 mm in air, 3% NaCl solution and distilled water with
complete immersion of specimen. The base of research in air was practically conducted to 107
cycles and in corrosion environment to 5×107 cycles.
Surface plastic deformation increases fatigue limit (s-1) of alloy D16T on 30 %, and corrosion
fatigue limit (s-1c) on 20 % after shot-peening and 50 % after roller burnishing. Mechanism
and character of alloys fracture under conditions of fatigue and corrosion fatigue are analysed
