ИСТИНА

Two-sided laser shock processing (TSLSP) is often employed to improve the surface quality of thin section components, which can reduce excessive plastic deformation induced by one-sided laser shock processing. Residual stresses (RS) field induced in a thin Ti–6Al–4V alloy plate by TSLSP was investigated through numerical simulation. The multiple TSLSP impacts and the increasing laser shock pressure were found to have significant effects on the RS field. Microhardness distribution on the section of specimen, calculated from RS by Carlsson-Larsson model, is analyzed. Acknowledgements: the work is financially supported by the Ministry of Education and Sciences of the Russian Federation within the federal target program “Studies and Developments of Promising Trends in Russian Science and Technology Sector for 2014–2020”. Subsidy agreement no. 14.607.21.0191 of September 26, 2017, project RFMEFI60714X0191.