Effect of annealing on corrosion resistance and mechanical properties of Cr–Fe–Ni–Co–Mo–Si–B amorphous coating

Yuwei Liang; Mingcai Yang; Dehao Kong; Taihong Huang; Jie Wang; Zijie Yang; Biju Zheng; Peng Song

Journal of Materials Research and Technology (Mar 2024)

Effect of annealing on corrosion resistance and mechanical properties of Cr–Fe–Ni–Co–Mo–Si–B amorphous coating

Yuwei Liang,
Mingcai Yang,
Dehao Kong,
Taihong Huang,
Jie Wang,
Zijie Yang,
Biju Zheng,
Peng Song

Affiliations

Yuwei Liang: Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; National-Local Joint Engineering Research Center for Technology of Advanced Metallic Solidification Forming and Equiment, Kunming University of Science and Technology, Kunming 650093, China; Yunnan Provincial International Joint Research and Development Center for Clean Emission Technology of Internal Combustion Engine, Kunming 650093, China
Mingcai Yang: Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; National-Local Joint Engineering Research Center for Technology of Advanced Metallic Solidification Forming and Equiment, Kunming University of Science and Technology, Kunming 650093, China; Yunnan Provincial International Joint Research and Development Center for Clean Emission Technology of Internal Combustion Engine, Kunming 650093, China
Dehao Kong: Faculty of Civil Aviation and Aeronautics, Kunming University of Science and Technology, Kunming 650500, China
Taihong Huang: Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; Yunnan Engineering Research Center of Metallic Powder Materials, Kunming 650093, China; Corresponding author. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China.
Jie Wang: Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; National-Local Joint Engineering Research Center for Technology of Advanced Metallic Solidification Forming and Equiment, Kunming University of Science and Technology, Kunming 650093, China; Yunnan Provincial International Joint Research and Development Center for Clean Emission Technology of Internal Combustion Engine, Kunming 650093, China
Zijie Yang: Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; Yunnan Engineering Research Center of Metallic Powder Materials, Kunming 650093, China
Biju Zheng: Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; National-Local Joint Engineering Research Center for Technology of Advanced Metallic Solidification Forming and Equiment, Kunming University of Science and Technology, Kunming 650093, China; Yunnan Provincial International Joint Research and Development Center for Clean Emission Technology of Internal Combustion Engine, Kunming 650093, China
Peng Song: Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; National-Local Joint Engineering Research Center for Technology of Advanced Metallic Solidification Forming and Equiment, Kunming University of Science and Technology, Kunming 650093, China; Yunnan Provincial International Joint Research and Development Center for Clean Emission Technology of Internal Combustion Engine, Kunming 650093, China; Faculty of Civil Aviation and Aeronautics, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center of Metallic Powder Materials, Kunming 650093, China; Corresponding author. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China.

Journal volume & issue: Vol. 29
pp. 4622 – 4635

Abstract

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Cr–Fe–Ni–Co–Mo–Si–B amorphous coating was successfully prepared on 316 L steel using atmospheric plasma spraying (APS). The effects of different annealing temperatures on the crystallization process of amorphous coatings, thus on the corrosion resistance and mechanical properties of coatings were studied. The results indicated that heat treatment can increase the hardness of the amorphous coating by 12.5% and reduce the wear rate by 30%. In addition, compared to heat-treated coatings, the amorphous coating had the highest corrosion voltage (−0.506V) and lower corrosion current (5.609 × 10−6 A). The passivation film on the amorphous coating provided the best protection due to the relatively high content of Cr2O3. The molecular dynamics (MD) calculation results also indicated that the adsorption energy of hydrogen chloride molecules on Cr–Fe–Ni–Co–Mo–Si–B amorphous coating (−90.94 kcal/mol) was greater than that of 316 L (−293.03 kcal/mol).

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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