Exceptional abrasion and corrosion resistance of NiCoCrAlY/Al2O3 blade tip abrasive coatings up to 1000 °C by laser cladding

Lin Chen; Yu Hao Xie; Chang Jiu Li; Guan Jun Yang

doi:10.1016/j.surfcoat.2024.131683

Exceptional abrasion and corrosion resistance of NiCoCrAlY/Al₂O₃ blade tip abrasive coatings up to 1000 °C by laser cladding

Lin Chen
, Yu Hao Xie
, Chang Jiu Li
, Guan Jun Yang

School of Materials Science and Engineering

Xi'an Jiaotong University

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

9 Scopus citations

Abstract

In addition to abradable seal coatings on casings, abrasive coatings are essential for enhancing turbine blade tip performance. This study introduces a NiCoCrAlY/Al₂O₃ abrasive coating to address this need. Results indicate that NiCoCrAlY/Al₂O₃ coatings provide superior oxidation and corrosion resistance compared to NiAl/cBN and NiAlTa coatings. Al₂O₃ particles remained stable even after exposure to corrosive conditions. Abrasion ratios for NiCoCrAlY/Al₂O₃-coated blade tips were 4.1 and 3.1 times greater than bare tips at 25 °C and 1000 °C, respectively. These findings highlight the potential of NiCoCrAlY/Al₂O₃ coatings to enhance turbine blade tip durability and engine efficiency, particularly in high-temperature applications.

Original language	English
Article number	131683
Journal	Surface and Coatings Technology
Volume	496
DOIs	https://doi.org/10.1016/j.surfcoat.2024.131683
State	Published - 15 Jan 2025

Keywords

Abrasion
Abrasive coating
Hot salt corrosion
Laser cladding
Turbine blade tip

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10.1016/j.surfcoat.2024.131683

Cite this

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title = "Exceptional abrasion and corrosion resistance of NiCoCrAlY/Al2O3 blade tip abrasive coatings up to 1000 °C by laser cladding",

abstract = "In addition to abradable seal coatings on casings, abrasive coatings are essential for enhancing turbine blade tip performance. This study introduces a NiCoCrAlY/Al₂O₃ abrasive coating to address this need. Results indicate that NiCoCrAlY/Al₂O₃ coatings provide superior oxidation and corrosion resistance compared to NiAl/cBN and NiAlTa coatings. Al₂O₃ particles remained stable even after exposure to corrosive conditions. Abrasion ratios for NiCoCrAlY/Al₂O₃-coated blade tips were 4.1 and 3.1 times greater than bare tips at 25 °C and 1000 °C, respectively. These findings highlight the potential of NiCoCrAlY/Al₂O₃ coatings to enhance turbine blade tip durability and engine efficiency, particularly in high-temperature applications.",

keywords = "Abrasion, Abrasive coating, Hot salt corrosion, Laser cladding, Turbine blade tip",

author = "Lin Chen and Xie, \{Yu Hao\} and Li, \{Chang Jiu\} and Yang, \{Guan Jun\}",

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

year = "2025",

month = jan,

day = "15",

doi = "10.1016/j.surfcoat.2024.131683",

language = "英语",

volume = "496",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Exceptional abrasion and corrosion resistance of NiCoCrAlY/Al2O3 blade tip abrasive coatings up to 1000 °C by laser cladding

AU - Chen, Lin

AU - Xie, Yu Hao

AU - Li, Chang Jiu

AU - Yang, Guan Jun

PY - 2025/1/15

Y1 - 2025/1/15

N2 - In addition to abradable seal coatings on casings, abrasive coatings are essential for enhancing turbine blade tip performance. This study introduces a NiCoCrAlY/Al₂O₃ abrasive coating to address this need. Results indicate that NiCoCrAlY/Al₂O₃ coatings provide superior oxidation and corrosion resistance compared to NiAl/cBN and NiAlTa coatings. Al₂O₃ particles remained stable even after exposure to corrosive conditions. Abrasion ratios for NiCoCrAlY/Al₂O₃-coated blade tips were 4.1 and 3.1 times greater than bare tips at 25 °C and 1000 °C, respectively. These findings highlight the potential of NiCoCrAlY/Al₂O₃ coatings to enhance turbine blade tip durability and engine efficiency, particularly in high-temperature applications.

AB - In addition to abradable seal coatings on casings, abrasive coatings are essential for enhancing turbine blade tip performance. This study introduces a NiCoCrAlY/Al₂O₃ abrasive coating to address this need. Results indicate that NiCoCrAlY/Al₂O₃ coatings provide superior oxidation and corrosion resistance compared to NiAl/cBN and NiAlTa coatings. Al₂O₃ particles remained stable even after exposure to corrosive conditions. Abrasion ratios for NiCoCrAlY/Al₂O₃-coated blade tips were 4.1 and 3.1 times greater than bare tips at 25 °C and 1000 °C, respectively. These findings highlight the potential of NiCoCrAlY/Al₂O₃ coatings to enhance turbine blade tip durability and engine efficiency, particularly in high-temperature applications.

KW - Abrasion

KW - Abrasive coating

KW - Hot salt corrosion

KW - Laser cladding

KW - Turbine blade tip

UR - https://www.scopus.com/pages/publications/85212586386

U2 - 10.1016/j.surfcoat.2024.131683

DO - 10.1016/j.surfcoat.2024.131683

M3 - 文章

AN - SCOPUS:85212586386

SN - 0257-8972

VL - 496

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

M1 - 131683

ER -

Exceptional abrasion and corrosion resistance of NiCoCrAlY/Al₂O₃ blade tip abrasive coatings up to 1000 °C by laser cladding

Abstract

Keywords

Access to Document

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