Wear and corrosion behavior of laser clad Cr3Si reinforced intermetallic composite coatings

摘要: Abstract Wear and corrosion are two of the three most frequently encountered failure modes for mechanical components working under aggressive conditions. Extending service life by surface engineering methods is critical importance from both technological economical point view. In this paper, novel rapidly solidified wear resistant Cr3Si reinforced intermetallic composite coatings were fabricated on a substrate austenitic stainless steel 1Cr18Ni9Ti laser cladding using Cr–Si–Ni elemental powder blends. Microstructure, hardness, room-temperature dry sliding electrochemical behavior clad investigated as function volume fraction. Results show that have microstructure consisting primary dendrites interdendritic matrix Cr–Ni–Si ternary silicide. Volume fraction was shown to remarkable influence resistance coatings. The higher Cr3Si, hardness