Effect of twin-related coincident site lattice (CSL) boundaries and their network on strengthening and plasticity in 316L stainless steel

Key Points

• Enhanced strength is achieved through the presence of coincident site lattice boundaries in 316L stainless steel, leading to improved plasticity.
• Up to 30% increase in ultimate tensile strength was observed with optimized twin boundary networks in experiments conducted over one month.
• Assessment using advanced imaging techniques uncovers the detailed structure of twin boundaries and their influence on mechanical properties.
• The findings highlight opportunities for engineering materials with tailored properties using twin-related structures.