Understanding the oxidation behaviors of a Ni-Co-based superalloy at elevated temperatures through multiscale characterization

Jiang Ju; Hongyao Yu; Yilu Zhao; Tao Yang; Bo Xiao; Peng Peng; Rui Wang; Hui Wang; Xiaoqin Zeng; Jun Wang; Zhao Shen

doi:10.1016/j.corsci.2023.111800

Understanding the oxidation behaviors of a Ni-Co-based superalloy at elevated temperatures through multiscale characterization

Jiang Ju (Co-first Author)
, Hongyao Yu (Co-first Author)
, Yilu Zhao
, Tao Yang
, Bo Xiao
, Peng Peng
, Rui Wang
, Hui Wang
, Xiaoqin Zeng
, Jun Wang^*
, Zhao Shen^*

^*Corresponding author for this work

Department of Materials Science and Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

73 Citations (Scopus)

Abstract

The study explored the oxidation behaviors of a Ni-Co-based superalloy at temperatures between 900–1100 °C in air, employing a weighing method and multiscale characterization techniques. The findings indicate that the superalloy adheres to parabolic kinetics and develops a complex, four-layer oxide scale comprising a TiO₂ layer, Co(Al, Cr)₂O₄ layer, Cr₂O₃ layer, and (Ti, Nb)₂O₅ layer. The excellent oxidation resistance is primarily attributed to the formation of the TiO₂ and Co(Al, Cr)₂O₄ layers. These layers contribute to reducing the evaporation of Cr₂O₃ and the development of the (Ti, Nb)₂O₅ layer, which in turn helps mitigate the exfoliation of the oxide scale. © 2023 Elsevier Ltd.

Original language	English
Article number	111800
Number of pages	12
Journal	Corrosion Science
Volume	227
Online published	26 Dec 2023
DOIs	https://doi.org/10.1016/j.corsci.2023.111800
Publication status	Published - Feb 2024

Research Keywords

Evaporation
Exfoliation
High-temperature oxidation
Ni-Co-based superalloy
TEM

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title = "Understanding the oxidation behaviors of a Ni-Co-based superalloy at elevated temperatures through multiscale characterization",

abstract = "The study explored the oxidation behaviors of a Ni-Co-based superalloy at temperatures between 900–1100 °C in air, employing a weighing method and multiscale characterization techniques. The findings indicate that the superalloy adheres to parabolic kinetics and develops a complex, four-layer oxide scale comprising a TiO2 layer, Co(Al, Cr)2O4 layer, Cr2O3 layer, and (Ti, Nb)2O5 layer. The excellent oxidation resistance is primarily attributed to the formation of the TiO2 and Co(Al, Cr)2O4 layers. These layers contribute to reducing the evaporation of Cr2O3 and the development of the (Ti, Nb)2O5 layer, which in turn helps mitigate the exfoliation of the oxide scale. {\textcopyright} 2023 Elsevier Ltd.",

keywords = "Evaporation, Exfoliation, High-temperature oxidation, Ni-Co-based superalloy, TEM",

author = "Jiang Ju and Hongyao Yu and Yilu Zhao and Tao Yang and Bo Xiao and Peng Peng and Rui Wang and Hui Wang and Xiaoqin Zeng and Jun Wang and Zhao Shen",

year = "2024",

month = feb,

doi = "10.1016/j.corsci.2023.111800",

language = "English",

volume = "227",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Understanding the oxidation behaviors of a Ni-Co-based superalloy at elevated temperatures through multiscale characterization

AU - Ju, Jiang

AU - Yu, Hongyao

AU - Zhao, Yilu

AU - Yang, Tao

AU - Xiao, Bo

AU - Peng, Peng

AU - Wang, Rui

AU - Wang, Hui

AU - Zeng, Xiaoqin

AU - Wang, Jun

AU - Shen, Zhao

PY - 2024/2

Y1 - 2024/2

N2 - The study explored the oxidation behaviors of a Ni-Co-based superalloy at temperatures between 900–1100 °C in air, employing a weighing method and multiscale characterization techniques. The findings indicate that the superalloy adheres to parabolic kinetics and develops a complex, four-layer oxide scale comprising a TiO2 layer, Co(Al, Cr)2O4 layer, Cr2O3 layer, and (Ti, Nb)2O5 layer. The excellent oxidation resistance is primarily attributed to the formation of the TiO2 and Co(Al, Cr)2O4 layers. These layers contribute to reducing the evaporation of Cr2O3 and the development of the (Ti, Nb)2O5 layer, which in turn helps mitigate the exfoliation of the oxide scale. © 2023 Elsevier Ltd.

AB - The study explored the oxidation behaviors of a Ni-Co-based superalloy at temperatures between 900–1100 °C in air, employing a weighing method and multiscale characterization techniques. The findings indicate that the superalloy adheres to parabolic kinetics and develops a complex, four-layer oxide scale comprising a TiO2 layer, Co(Al, Cr)2O4 layer, Cr2O3 layer, and (Ti, Nb)2O5 layer. The excellent oxidation resistance is primarily attributed to the formation of the TiO2 and Co(Al, Cr)2O4 layers. These layers contribute to reducing the evaporation of Cr2O3 and the development of the (Ti, Nb)2O5 layer, which in turn helps mitigate the exfoliation of the oxide scale. © 2023 Elsevier Ltd.

KW - Evaporation

KW - Exfoliation

KW - High-temperature oxidation

KW - Ni-Co-based superalloy

KW - TEM

UR - https://www.scopus.com/pages/publications/85181125776

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85181125776&origin=recordpage

U2 - 10.1016/j.corsci.2023.111800

DO - 10.1016/j.corsci.2023.111800

M3 - RGC 21 - Publication in refereed journal

SN - 0010-938X

VL - 227

JO - Corrosion Science

JF - Corrosion Science

M1 - 111800

ER -

Understanding the oxidation behaviors of a Ni-Co-based superalloy at elevated temperatures through multiscale characterization

Abstract

Research Keywords

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