A honeycomb-like crystalline-amorphous nanostructure in Cu-B alloy with high corrosion resistance

Abstract

This study successfully synthesized a honeycomb-structured Cu-B alloy through solidification conditions. The microstructure of the honeycomb-like Cu-B alloy revealed the coexistence of crystalline and amorphous phases, exhibiting a characteristic honeycomb structure. In testing conducted in 0.6 mol/L HCl and 0.6 mol/L NaCl solutions, the honeycomb Cu-B alloy has excellent corrosion resistance compared with Cu-30Ni alloy. The hardness of the alloy reached 3.8 GPa, surpassing other Cu-based alloys and alloys with good corrosion resistance. Additionally, the honeycomb-like Cu-B alloy showed excellent antimicrobial activity against Pseudomonas aeruginosa. Consequently, the honeycomb-structured honeycomb-like Cu-B alloy is deemed suitable for the demanding corrosive environments encountered in offshore engineering applications.