Effect of laser ablation over cavitation, slurry erosion, and surface properties of 86WC-10Co-4Cr based ceramic coating developed using HP-HVOLF

Mohit Vishnoi; Vikrant Singh; Anuj Bansal; Qasim Murtaza; Paras Kumar

doi:10.1016/j.surfcoat.2024.131230

Effect of laser ablation over cavitation, slurry erosion, and surface properties of 86WC-10Co-4Cr based ceramic coating developed using HP-HVOLF

Mohit Vishnoi^*
, Vikrant Singh
, Anuj Bansal
, Qasim Murtaza^*
, Paras Kumar

^*Corresponding author for this work

Interdisciplinary Research Center for Advanced Materials

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

18 Scopus citations

Abstract

The manuscript presents a detailed study on WC-10Co-4Cr powder coatings applied via HP-HVOLF and subjected to laser ablation. FESEM analysis showed strong metallurgical bonding between the coating and SS410 substrate (≈75 MPa), crucial for durability. Despite the presence of cavities and pits, the coating's overall thickness remains consistent post-ablation, affirming stability. EDS mapping confirmed uniform elemental distribution, with well-bonded transition zones. Vickers hardness increased in laser-ablated samples (HV_0.3 ≈ 1523) compared to unablated samples (HV_0.3 ≈ 1344). Slurry and cavitation erosion analyses demonstrated superior resistance in laser-ablated samples due to higher microhardness and elevated static contact angles. Contact angle measurements indicated hydrophobicity in both un-textured and textured samples, with textured surfaces showing increased hydrophobicity.

Original language	English
Article number	131230
Journal	Surface and Coatings Technology
Volume	492
DOIs	https://doi.org/10.1016/j.surfcoat.2024.131230
State	Published - 30 Sep 2024

Bibliographical note

Publisher Copyright:
© 2024 Elsevier B.V.

Keywords

HP-HVOLF
Laser ablation
SS410
WC-10Co-4Cr

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.surfcoat.2024.131230

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title = "Effect of laser ablation over cavitation, slurry erosion, and surface properties of 86WC-10Co-4Cr based ceramic coating developed using HP-HVOLF",

abstract = "The manuscript presents a detailed study on WC-10Co-4Cr powder coatings applied via HP-HVOLF and subjected to laser ablation. FESEM analysis showed strong metallurgical bonding between the coating and SS410 substrate (≈75 MPa), crucial for durability. Despite the presence of cavities and pits, the coating's overall thickness remains consistent post-ablation, affirming stability. EDS mapping confirmed uniform elemental distribution, with well-bonded transition zones. Vickers hardness increased in laser-ablated samples (HV0.3 ≈ 1523) compared to unablated samples (HV0.3 ≈ 1344). Slurry and cavitation erosion analyses demonstrated superior resistance in laser-ablated samples due to higher microhardness and elevated static contact angles. Contact angle measurements indicated hydrophobicity in both un-textured and textured samples, with textured surfaces showing increased hydrophobicity.",

keywords = "HP-HVOLF, Laser ablation, SS410, WC-10Co-4Cr",

author = "Mohit Vishnoi and Vikrant Singh and Anuj Bansal and Qasim Murtaza and Paras Kumar",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

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doi = "10.1016/j.surfcoat.2024.131230",

language = "English",

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journal = "Surface and Coatings Technology",

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T1 - Effect of laser ablation over cavitation, slurry erosion, and surface properties of 86WC-10Co-4Cr based ceramic coating developed using HP-HVOLF

AU - Vishnoi, Mohit

AU - Singh, Vikrant

AU - Bansal, Anuj

AU - Murtaza, Qasim

AU - Kumar, Paras

PY - 2024/9/30

Y1 - 2024/9/30

N2 - The manuscript presents a detailed study on WC-10Co-4Cr powder coatings applied via HP-HVOLF and subjected to laser ablation. FESEM analysis showed strong metallurgical bonding between the coating and SS410 substrate (≈75 MPa), crucial for durability. Despite the presence of cavities and pits, the coating's overall thickness remains consistent post-ablation, affirming stability. EDS mapping confirmed uniform elemental distribution, with well-bonded transition zones. Vickers hardness increased in laser-ablated samples (HV0.3 ≈ 1523) compared to unablated samples (HV0.3 ≈ 1344). Slurry and cavitation erosion analyses demonstrated superior resistance in laser-ablated samples due to higher microhardness and elevated static contact angles. Contact angle measurements indicated hydrophobicity in both un-textured and textured samples, with textured surfaces showing increased hydrophobicity.

AB - The manuscript presents a detailed study on WC-10Co-4Cr powder coatings applied via HP-HVOLF and subjected to laser ablation. FESEM analysis showed strong metallurgical bonding between the coating and SS410 substrate (≈75 MPa), crucial for durability. Despite the presence of cavities and pits, the coating's overall thickness remains consistent post-ablation, affirming stability. EDS mapping confirmed uniform elemental distribution, with well-bonded transition zones. Vickers hardness increased in laser-ablated samples (HV0.3 ≈ 1523) compared to unablated samples (HV0.3 ≈ 1344). Slurry and cavitation erosion analyses demonstrated superior resistance in laser-ablated samples due to higher microhardness and elevated static contact angles. Contact angle measurements indicated hydrophobicity in both un-textured and textured samples, with textured surfaces showing increased hydrophobicity.

KW - HP-HVOLF

KW - Laser ablation

KW - SS410

KW - WC-10Co-4Cr

UR - https://www.scopus.com/pages/publications/85200960507

U2 - 10.1016/j.surfcoat.2024.131230

DO - 10.1016/j.surfcoat.2024.131230

M3 - Article

AN - SCOPUS:85200960507

SN - 0257-8972

VL - 492

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

M1 - 131230

ER -

Effect of laser ablation over cavitation, slurry erosion, and surface properties of 86WC-10Co-4Cr based ceramic coating developed using HP-HVOLF

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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