Application of Laser Shock Peening on Nitrided Steel for Power Transmission Components

Author:  1: Laboratoire PIMM, Arts et Metiers Institute of Technology, ENSAM, CNRS, CNAM, HESAM Université, 151 Boulevard de l’Hôpital, 75013 Paris, France, 2 : Institut de Recherche Technologique Matériaux, Métallurgie et Procédés, 4 Rue Augustin Fresnel, 57070 M
Source:  ICSP14 Milan
Doc ID:  2022078
Year of Publication:  2022
Abstract:  
Abstract Laser Shock Peening (LSP) has been performed on 32CrMoV13 nitrided steel. Surface properties, residual stresses (RS) and hardness had been investigated to study the effect of LSP on these kinds of materials. High level of compressive RS had been measured after LSP through the depth. No changes had been noticed in terms of hardness and microstructure. Degradation of roughness had been observed after treatment. This paper presents the first results about LSP on nitrided steel. Keywords Laser shock peening, Deep nitrided steel, Compressive residual stresses, Roughness, Gear tooth root.Abstract Laser Shock Peening (LSP) has been performed on 32CrMoV13 nitrided steel. Surface properties, residual stresses (RS) and hardness had been investigated to study the effect of LSP on these kinds of materials. High level of compressive RS had been measured after LSP through the depth. No changes had been noticed in terms of hardness and microstructure. Degradation of roughness had been observed after treatment. This paper presents the first results about LSP on nitrided steel. Keywords Laser shock peening, Deep nitrided steel, Compressive residual stresses, Roughness, Gear tooth root.