Hierarchical strengthening and toughening design of superalloy joints via a chemically complex intermetallic alloy-modified diffusion bonding strategy

Key Points

• The aim is to design interlayer materials that strengthen and toughen superalloy joints for better performance in aero-engine components.
• Developed a chemically complex intermetallic alloy for diffusion bonding processes.
• Applied the new alloy in bonding precision turbine component structures.
• Evaluated the mechanical properties of the bonded joints under stress conditions.
• The new interlayer significantly increased joint strength compared to traditional methods.
• Improvements were observed in both toughness and durability of the bonded superalloy components.