Effect of eggshell waste and B4C particles on the mechanical and tribological properties of Al7075 alloy developed by friction stir processingRishabh Dwivedi, Ashish Kumar Srivastava and Rakesh Kumar SinghMetall. Res. Technol., 119 5 (2022) 508DOI: https://doi.org/10.1051/metal/2022055