Effects of Y₂O₃ on Microstructure and Corrosion Properties of Laser Cladding Composite Coatings on 304 Stainless Steel Substrate

• Autorzy: Yu Jinling , Zhentai Zheng , Li Shuai , Guo Donghui , Chang Liang

Identyfikatory

DOI

10.24425/amm.2023.142421

• Języki publikacji: EN

Abstrakty

EN

Ni625/WC composite coatings added with different amounts of Y₂O₃ were prepared on the surface of 304 stainless steels by laser cladding. This study focused on the microstructure characteristics, microhardness, and corrosion performances of Ni625/WC composite coatings. The results showed that Y₂O₃ can effectively improve the corrosion resistance of the composite coatings. The microstructure from the bottom to the surface of composite coatings consists of plane crystal, cellular crystal, columnar crystal and equiaxed crystal. The Y₂O₃ content of optimum composite coating was 1.0%. Its microhardness was three times that of matrix material. In addition, the corrosion current density of the composite coating was only 2% of Ni625/WC coating, which was attributed to the good properties of Y₂O₃ and appropriate Y₂O₃ refined microstructure.

Słowa kluczowe

EN

laser cladding; Ni-based coatings; electrochemical corrosion

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2023
• Tom: Vol. 68, iss. 2
• Strony: 447--453
• Opis fizyczny: Bibliogr. 17 poz., fot., rys., tab.

Twórcy

autor

Yu Jinling

• Hebei University of Technology, School of Materials Science and Engineering, No. 5340, Xipingdao Road, Beichen District, Tianjin, 300401, PR China

• https://orcid.org/0000-0002-6615-7719

autor

Zhentai Zheng

• Hebei University of Technology, School of Materials Science and Engineering, No. 5340, Xipingdao Road, Beichen District, Tianjin, 300401, PR China

• https://orcid.org/0000-0003-1717-1976

autor

Li Shuai

• Hebei University of Technology, School of Materials Science and Engineering, No. 5340, Xipingdao Road, Beichen District, Tianjin, 300401, PR China

• https://orcid.org/0000-0002-3089-2922

autor

Guo Donghui

• Hebei University of Technology, School of Materials Science and Engineering, No. 5340, Xipingdao Road, Beichen District, Tianjin, 300401, PR China

• https://orcid.org/0000-0002-4755-7995

autor

Chang Liang

• Hebei University of Technology, School of Materials Science and Engineering, No. 5340, Xipingdao Road, Beichen District, Tianjin, 300401, PR China

• https://orcid.org/0000-0003-4907-9306

Bibliografia

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Uwagi

This work is financially supported by the Natural Science Foundation of Hebei Province, P. R. China under Grant No. E2020202011.