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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Structural Features and Corrosion Resistance of Fe66Cr10Nb5B19 Metallic Glass Coatings Obtained by Detonation Spraying

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Author(s):
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Kuchumova, Ivanna D. [1, 2] ; Eryomina, Marina A. [3] ; Lyalina, V, Natalia ; Dudina, V, Dina ; Batraev, Igor S. [4] ; Ulianitsky, Vladimir Yu [4] ; Shtertser, Alexandr A. [4] ; Cherkasova, Nina Yu [5] ; Ruktuev, Alexey A. [5] ; Ukhina, V, Arina ; Borisenko, Tatiana A. [6] ; Koga, Guilherme Yuuki [7] ; Kiminami, Claudio Shyint [7] ; Jorge, Jr., Alberto Moreira [7, 8, 9]
Total Authors: 14
Affiliation:
[1] Novosibirsk State Tech Univ, K Marx Ave 20, Novosibirsk 630073 - Russia
[2] Russian Acad Sci, Lavrentyev Inst Hydrodynam, Siberian Branch, Lavrentyev Ave 15, Novosibirsk 630090 - Russia
[3] V, Russian Acad Sci, Udmurt Fed Res Ctr, Ural Branch, T Baramzinoy Str 34, Izhevsk 426067 - Russia
[4] Dudina, Dina, V, Russian Acad Sci, Lavrentyev Inst Hydrodynam, Siberian Branch, Lavrentyev Ave 15, Novosibirsk 630090 - Russia
[5] Dudina, Dina, V, Novosibirsk State Tech Univ, K Marx Ave 20, Novosibirsk 630073 - Russia
[6] Ukhina, Arina, V, Dudina, Dina, V, Russian Acad Sci, Inst Solid State Chem & Mechanochem, Siberian Branch, Kutateladze Str 18, Novosibirsk 630128 - Russia
[7] Univ Fed Sao Carlos, Dept Mat Sci & Engn, Via Washington Luiz, Km 235, BR-13565905 Sao Carlos, SP - Brazil
[8] Univ Grenoble Alpes, Univ Savoie Mt Blanc, Lab Electrochim & Physicochim Mat Interfaces, Ctr Natl Rech Sci, Grenoble INP, F-38000 Grenoble - France
[9] Univ Grenoble Alpes, Sci & Ingn Mat & Proc, Ctr Natl Rech Sci, Grenoble INP, F-38000 Grenoble - France
Total Affiliations: 9
Document type: Journal article
Source: Journal of Materials Engineering and Performance; v. 31, n. 1 AUG 2021.
Web of Science Citations: 0
Abstract

In the present work, Fe66Cr10Nb5B19 metallic glass coatings deposited by detonation spraying (DS) on carbon steel substrates were structurally characterized and tested in 3.5 wt.% NaCl solutions with pH values of 3.0, 5.5, and 10.0 under potentiodynamic polarization conditions. The coatings had low porosity (2.9-4.5%) and showed a predominantly amorphous structure. The concentration of an amorphous phase in the detonation coatings was 97.5-99.5 wt.%. Such high concentrations were not observed in thermally sprayed Fe-Cr-Nb-B coatings obtained by other research groups. Under the test conditions, the coatings exhibited low corrosion current densities (of the order of 10(-6) A cm(-2)) and low passive current densities (below 10(-3) A cm(-2)) while showing extended passive regions (stable within 1.5 V from the corrosion potential). The Fe66Cr10Nb5B19 coatings produced by DS showed a much better corrosion resistance than the carbon steel substrate. Furthermore, the corrosion resistance of the Fe66Cr10Nb5B19 DS coatings was superior to that of flame-sprayed or high-velocity oxygen fuel-sprayed Fe-Cr-Nb-B coatings reported to date. These results open new prospects for the use of affordable and Cr-lean Fe-Cr-Nb-B glassy coatings for carbon steel protection, where chloride-induced corrosion is the major degradation risk, such as metallic components for marine applications. (AU)

FAPESP's process: 13/05987-8 - Processing and characterization of amorphous, metastable and nano-structured metallic alloys
Grantee:Claudio Shyinti Kiminami
Support Opportunities: Research Projects - Thematic Grants