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Microstructure, corrosive wear and electrochemical properties of Al2O3 reinforced FeAl coatings by laser cladding
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Purpose
This study aims to investigate the influences of Al2O3 mass fraction on the corrosive wear and electrochemical behaviors of FeAl–xAl2O3 coatings.
Design/methodology/approach
FeAl–xAl2O3 coatings were prepared on S355 steel by laser cladding to improve its corrosive wear and electrochemical properties.
Findings
The average coefficients of friction and wear rates of FeAl–xAl2O3 coatings are decreased with the Al2O3 mass fraction, and the Al2O3 plays a positive role in the corrosion wear resistance. Moreover, the charge transfer resistance of FeAl–xAl2O3 coatings is increased with the Al2O3 mass fraction, showing the FeAl–15%Al2O3 coating has the best corrosion resistance. The findings show the corrosion resistance of FeAl–15%Al2O3 coating is the highest among the three kinds of coatings.
Originality/value
Al2O3 was first added into FeAl coatings to further improve its corrosive wear and electrochemical properties by laser cladding.
Title: Microstructure, corrosive wear and electrochemical properties of Al2O3 reinforced FeAl coatings by laser cladding
Description:
Purpose
This study aims to investigate the influences of Al2O3 mass fraction on the corrosive wear and electrochemical behaviors of FeAl–xAl2O3 coatings.
Design/methodology/approach
FeAl–xAl2O3 coatings were prepared on S355 steel by laser cladding to improve its corrosive wear and electrochemical properties.
Findings
The average coefficients of friction and wear rates of FeAl–xAl2O3 coatings are decreased with the Al2O3 mass fraction, and the Al2O3 plays a positive role in the corrosion wear resistance.
Moreover, the charge transfer resistance of FeAl–xAl2O3 coatings is increased with the Al2O3 mass fraction, showing the FeAl–15%Al2O3 coating has the best corrosion resistance.
The findings show the corrosion resistance of FeAl–15%Al2O3 coating is the highest among the three kinds of coatings.
Originality/value
Al2O3 was first added into FeAl coatings to further improve its corrosive wear and electrochemical properties by laser cladding.
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