High-velocity oxy-fuel and high-velocity air fuel sprayed WC-Co-Cr coatings on solution-treated 21-4N steel for slurry and corrosion resistance

Rajanna Lingappa; Tumakur Gangadhar Mamatha; Momballi Shivappadevaru Prabhuswamy; Vikrant Singh; Anuj Bansal

doi:10.5599/jese.2246

High-velocity oxy-fuel and high-velocity air fuel sprayed WC-Co-Cr coatings on solution-treated 21-4N steel for slurry and corrosion resistance

Rajanna Lingappa^*
, Tumakur Gangadhar Mamatha
, Momballi Shivappadevaru Prabhuswamy
, Vikrant Singh
, Anuj Bansal

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

This study aims to fabricate WC-Co-Cr coatings on the solution-treated 21-4N steel utilizing high-velocity oxy-fuel (HVOF) and high-velocity air fuel (HVAF) techniques. The microstructure, hardness, surface quality, porosity, slurry erosion, and corrosion resistance of HVOF and HVAF coatings on solution-treated 21-4N steel were investigated and compared. The HVAF sprayed WC-Co-Cr coating exhibited dense structure, more hardness (1582 HV), greater fracture toughness (5.69 MPa m^1/2), less decarburization, and lower porosity (0.97 %) as compared to HVOF sprayed coating. Further, slurry jet erosion tests and electrochemical corrosion tests provide a comprehensive evaluation of the coating’s performance under erosive and corrosive conditions. Eventually, the conclusive results of the study affirm the exceptional performance of the high-velocity air fuel sprayed WC-Co-Cr coating, demonstrating its superiority in both erosion and corrosion resistance compared to the high-velocity oxygen fuel sprayed coating.

Original language	English
Pages (from-to)	499-522
Number of pages	24
Journal	Journal of Electrochemical Science and Engineering
Volume	14
Issue number	4
DOIs	https://doi.org/10.5599/jese.2246
State	Published - 25 Aug 2024
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2024 by the authors.

Keywords

Slurry jet erosion test
electrochemical corrosion test
surface modification

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Colloid and Surface Chemistry
Materials Chemistry
Electrochemistry

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10.5599/jese.2246

Cite this

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title = "High-velocity oxy-fuel and high-velocity air fuel sprayed WC-Co-Cr coatings on solution-treated 21-4N steel for slurry and corrosion resistance",

abstract = "This study aims to fabricate WC-Co-Cr coatings on the solution-treated 21-4N steel utilizing high-velocity oxy-fuel (HVOF) and high-velocity air fuel (HVAF) techniques. The microstructure, hardness, surface quality, porosity, slurry erosion, and corrosion resistance of HVOF and HVAF coatings on solution-treated 21-4N steel were investigated and compared. The HVAF sprayed WC-Co-Cr coating exhibited dense structure, more hardness (1582 HV), greater fracture toughness (5.69 MPa m1/2), less decarburization, and lower porosity (0.97 \%) as compared to HVOF sprayed coating. Further, slurry jet erosion tests and electrochemical corrosion tests provide a comprehensive evaluation of the coating{\textquoteright}s performance under erosive and corrosive conditions. Eventually, the conclusive results of the study affirm the exceptional performance of the high-velocity air fuel sprayed WC-Co-Cr coating, demonstrating its superiority in both erosion and corrosion resistance compared to the high-velocity oxygen fuel sprayed coating.",

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author = "Rajanna Lingappa and Mamatha, \{Tumakur Gangadhar\} and Prabhuswamy, \{Momballi Shivappadevaru\} and Vikrant Singh and Anuj Bansal",

note = "Publisher Copyright: {\textcopyright} 2024 by the authors.",

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doi = "10.5599/jese.2246",

language = "English",

volume = "14",

pages = "499--522",

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publisher = "International Association of Physical Chemists",

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High-velocity oxy-fuel and high-velocity air fuel sprayed WC-Co-Cr coatings on solution-treated 21-4N steel for slurry and corrosion resistance. / Lingappa, Rajanna; Mamatha, Tumakur Gangadhar; Prabhuswamy, Momballi Shivappadevaru et al.
In: Journal of Electrochemical Science and Engineering, Vol. 14, No. 4, 25.08.2024, p. 499-522.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - High-velocity oxy-fuel and high-velocity air fuel sprayed WC-Co-Cr coatings on solution-treated 21-4N steel for slurry and corrosion resistance

AU - Lingappa, Rajanna

AU - Mamatha, Tumakur Gangadhar

AU - Prabhuswamy, Momballi Shivappadevaru

AU - Singh, Vikrant

AU - Bansal, Anuj

PY - 2024/8/25

Y1 - 2024/8/25

N2 - This study aims to fabricate WC-Co-Cr coatings on the solution-treated 21-4N steel utilizing high-velocity oxy-fuel (HVOF) and high-velocity air fuel (HVAF) techniques. The microstructure, hardness, surface quality, porosity, slurry erosion, and corrosion resistance of HVOF and HVAF coatings on solution-treated 21-4N steel were investigated and compared. The HVAF sprayed WC-Co-Cr coating exhibited dense structure, more hardness (1582 HV), greater fracture toughness (5.69 MPa m1/2), less decarburization, and lower porosity (0.97 %) as compared to HVOF sprayed coating. Further, slurry jet erosion tests and electrochemical corrosion tests provide a comprehensive evaluation of the coating’s performance under erosive and corrosive conditions. Eventually, the conclusive results of the study affirm the exceptional performance of the high-velocity air fuel sprayed WC-Co-Cr coating, demonstrating its superiority in both erosion and corrosion resistance compared to the high-velocity oxygen fuel sprayed coating.

AB - This study aims to fabricate WC-Co-Cr coatings on the solution-treated 21-4N steel utilizing high-velocity oxy-fuel (HVOF) and high-velocity air fuel (HVAF) techniques. The microstructure, hardness, surface quality, porosity, slurry erosion, and corrosion resistance of HVOF and HVAF coatings on solution-treated 21-4N steel were investigated and compared. The HVAF sprayed WC-Co-Cr coating exhibited dense structure, more hardness (1582 HV), greater fracture toughness (5.69 MPa m1/2), less decarburization, and lower porosity (0.97 %) as compared to HVOF sprayed coating. Further, slurry jet erosion tests and electrochemical corrosion tests provide a comprehensive evaluation of the coating’s performance under erosive and corrosive conditions. Eventually, the conclusive results of the study affirm the exceptional performance of the high-velocity air fuel sprayed WC-Co-Cr coating, demonstrating its superiority in both erosion and corrosion resistance compared to the high-velocity oxygen fuel sprayed coating.

KW - Slurry jet erosion test

KW - electrochemical corrosion test

KW - surface modification

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DO - 10.5599/jese.2246

M3 - Article

AN - SCOPUS:85203337229

SN - 1847-9286

VL - 14

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JO - Journal of Electrochemical Science and Engineering

JF - Journal of Electrochemical Science and Engineering

IS - 4

ER -

High-velocity oxy-fuel and high-velocity air fuel sprayed WC-Co-Cr coatings on solution-treated 21-4N steel for slurry and corrosion resistance

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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