Modification of Diffusion Layers by Laser Shock Peening

The article deals with a possibilities of an enhancement functional properties highly stressed components by specific combination surface technology. Two technologies such as plasma nitriding and laser shock peening were selected for the experiment. Those applied upon steel 42CrMo4 frequently utilized in manufacturing strained components. Properties obtained tested following experimental methods. chemical composition was verified optical emission spectrometer Tasman Q4 Bruker. morphology inspected scanning electron microscope TESCAN MIRA 4. microstructure heat treated well nitrided specimens observed opto-digital Olympus DSX500i. microhardness profiles measured tester LM247 AT LECO. friction coefficient on tribometer Bruker UMT 3 TriboLab. For assessment wear resistance profilometer Talysurf CLI 1000 Contour GT utilized. results show that although proposed technology manifests itself to be disadvantageous, both LSP, nitriding, separately, can lead significant reduction.