This study reveals how welding current influences corrosion resistance and mechanical properties of Cu-Mn-Al cladding on 27SiMn steel, indicating optimized parameters.
Key Points
Cladding layer width increases with welding current, while height remains stable around 3 mm.
At 120 A, the cladding layer achieves peak shear strength of 509.49 MPa; at 150 A, average hardness peaks at 253 HV.
Cold Metal Transfer technology promotes defect-free coating formation with lower heat input compared to conventional methods.
Experimental findings highlight the potential for longer service life of 27SiMn steel components in aggressive environments.