This article explores the impact of friction stir processing (FSP) on the surface
modification of magnesium alloy AZ91D. The purpose is to enhance the alloy’s
surface qualities and, consequently, improve its performance in various
applications. Using FSP, the microstructure and mechanical characteristics of
the magnesium alloy are improved through solid-state joining. The study assesses
the impact of FSP parameters on the alloy’s surface properties. Researchers
adjust parameters such as tool rotation speed and traverse speed to achieve
accurate FSP conditions for the intended surface alterations. The surface
characteristics of FSP-treated magnesium alloy AZ91D are evaluated through
detailed analyses, including microstructure, surface roughness, hardness, and
wear resistance. The study considers the effect of FSP on grain development and
microhardness, which reflect the immediate impact on surface properties. The
study also examines how nano-sized boron nitride (BN) particles are distributed
and dispersed during FSP. The addition of BN particles to the alloy through FSP
is intended to further improve surface characteristics and wear resistance. The
research concludes that FSP has the potential to modify the surface of magnesium
alloys, resulting in surfaces with improved properties such as increased
hardness, reduced surface roughness, and greater wear resistance. This study
contributes to the development of high-performance magnesium-based materials,
particularly in the automotive, aerospace, and electrical engineering sectors.
FSP can expand the range of applications for magnesium alloy AZ91D and improve
its overall performance.