Enhancement of metallurgical and mechanical properties due to grain refinement in the compressive residual stress developed surface after the laser shock peening process: a review

Nowadays, scientists working in the area of peening regularly use laser shock peening (LSP), a cutting-edge and effective thermomechanical technique, to modify and enhance the material's surfaces-based characteristics. The primary goal of this systematic review is to highlight LSP as a post-weld operation approach that can potentially aid in marketing, but still faces challenges. Integrating laser shock peening with laser beam welding may be a viable alternative to more traditional post-weld procedures for enhancing mechanical properties. This analysis review articles that have mentioned peening and welding in recent years. In addition to categorising the key variables of LSP, it explores the significant impacts of LSP on the microstructure and mechanical characteristics of various weldments. Our research leads us to conclude that LSP can be employed as a post-weld treatment (PWT) method in commercial manufacturing operations.