Effect of in-situ thermal cycles in laser directed energy deposition on microstructure and mechanical property evolution of repaired bainitic crossing noses

Key Points

• Improved mechanical properties were observed in bainitic crossing noses after thermal cycles.
• The study documented microstructural changes linked to specific thermal cycles during laser treatments.
• Analysis of microstructures demonstrated a correlation between thermal cycles and mechanical enhancements.
• Findings suggest that optimal thermal management can enhance the durability of repaired components.