Nanoindention tests and SEM microstructure observations were conducted on a single crystal nickel base superalloy after laser shock peening (LSP). Distinct surface hardening behavior was found to occur under the selected LSP technology. A large discrepancy in gamma' areas happened on laser shocked regions and the large plastic deformation embodied in gamma' phases' deformation brought a significant hardening effect.
Lu, G. X.,Liu, J. D.,Qiao, H. C.,et al. Surface Nano-hardness And Microstructure Of A Single Crystal Nickel Base Superalloy After Laser Shock Peening[J]. Optics And Laser Technology,2017,91:116-119.
