To enhance the hardness and wear resistance of 304 stainless steel, Fe-based memory alloy/PZT piezoelectric ceramic (SMA/PZT) composite coatings with different PZT doping amounts (0.5–2 wt.%) were fabricated on 304 stainless steel by laser cladding. Coatings show good metallurgical bonding with the substrate. The microstructure, phase composition, microhardness, wear and corrosion resistance of the composite coating were investigated by scanning electron microscopy, X-ray diffractometer, microhardness tester, friction and wear tester and electrochemical workstation respectively. The results show that the microhardness, wear resistance and corrosion resistance of the composite coating are improved compared to the SMA coating. When the PZT doping amount is 1 wt.%, the SMA/PZT composite coating has the highest microhardness, and its wear and corrosion resistance are optimal compared to other coatings. It proved that 1 wt.% was optimal doping amount of PZT in the composite coating.
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