Influence of processing condition and post-spray heat treatment on the tribological performance of high velocity air-fuel sprayed Cr3C2-25NiCr coatings

Rahul Jude Alroy; M. Kamaraj; G. Sivakumar

doi:10.1016/j.surfcoat.2023.129498

Influence of processing condition and post-spray heat treatment on the tribological performance of high velocity air-fuel sprayed Cr₃C₂-25NiCr coatings

Rahul Jude Alroy
, M. Kamaraj
, G. Sivakumar^*

^*Corresponding author for this work

Not published at VTT

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

18 Citations (Scopus)

Abstract

In the present study, fine and coarse Cr₃C₂-25NiCr particles were sprayed through HVAF and oxygen-augmented HVAF(O) modes. The as-deposited coatings were heat treated in order to improve the microstructural features and mechanical properties. The as-deposited and heat-treated coatings were characterized in detail for their phase composition, microstructural features and mechanical properties. Subsequently, a high-load sliding test (ball-on-disc) was performed to evaluate the influence of processing conditions and heat treatment on the sliding wear performance of Cr₃C₂-25NiCr coatings. Following that, detailed post-wear analyses were performed to analyze the wear rate/mechanism. As inferred from the results, the appropriate choice of process parameters and heat treatment conditions improved the sliding wear performance of Cr₃C₂-25NiCr coatings.

Original language	English
Article number	129498
Journal	Surface and Coatings Technology
Volume	463
DOIs	https://doi.org/10.1016/j.surfcoat.2023.129498
Publication status	Published - 25 Jun 2023
MoE publication type	A1 Journal article-refereed

Funding

The authors acknowledge the Director, ARCI, for giving kind permission to publish this research work. Part of the results was presented in IndiaTrib-2022; the author extends gratitude to the Tribology society of India for the same.

Keywords

Cr3C2-NiCr
Heat treatment
HVAF spray
Sliding wear

Access to Document

10.1016/j.surfcoat.2023.129498

Cite this

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title = "Influence of processing condition and post-spray heat treatment on the tribological performance of high velocity air-fuel sprayed Cr3C2-25NiCr coatings",

abstract = "In the present study, fine and coarse Cr3C2-25NiCr particles were sprayed through HVAF and oxygen-augmented HVAF(O) modes. The as-deposited coatings were heat treated in order to improve the microstructural features and mechanical properties. The as-deposited and heat-treated coatings were characterized in detail for their phase composition, microstructural features and mechanical properties. Subsequently, a high-load sliding test (ball-on-disc) was performed to evaluate the influence of processing conditions and heat treatment on the sliding wear performance of Cr3C2-25NiCr coatings. Following that, detailed post-wear analyses were performed to analyze the wear rate/mechanism. As inferred from the results, the appropriate choice of process parameters and heat treatment conditions improved the sliding wear performance of Cr3C2-25NiCr coatings.",

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PY - 2023/6/25

Y1 - 2023/6/25

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AB - In the present study, fine and coarse Cr3C2-25NiCr particles were sprayed through HVAF and oxygen-augmented HVAF(O) modes. The as-deposited coatings were heat treated in order to improve the microstructural features and mechanical properties. The as-deposited and heat-treated coatings were characterized in detail for their phase composition, microstructural features and mechanical properties. Subsequently, a high-load sliding test (ball-on-disc) was performed to evaluate the influence of processing conditions and heat treatment on the sliding wear performance of Cr3C2-25NiCr coatings. Following that, detailed post-wear analyses were performed to analyze the wear rate/mechanism. As inferred from the results, the appropriate choice of process parameters and heat treatment conditions improved the sliding wear performance of Cr3C2-25NiCr coatings.

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