Microstructure evolution of Ni-rich NiTi(-Hf) alloy during thermal oxidation at different temperatures

B. Li; L. J. Zheng; X. M. Chen; H. Zhang

doi:10.1016/j.matchemphys.2022.127114

Microstructure evolution of Ni-rich NiTi(-Hf) alloy during thermal oxidation at different temperatures

B. Li
, L. J. Zheng^*
, X. M. Chen
, H. Zhang

^*此作品的通讯作者

材料科学与工程学院

Beihang University

科研成果: 期刊稿件 › 文章 › 同行评审

8 引用（Scopus）

摘要

The oxidation behavior of Ni-rich NiTi(-Hf) alloy at the temperature range from 400 to 950 °C is investigated in this paper. For Ni-rich NiTi alloy, the results show that the oxidation kinetics follow the logarithmic law at 400 °C and obey the parabolic law from 500 to 950 °C. After high-temperature oxidation, the observed multi-layered scale structure consists of TiO₂+Ti₂O₃+NiTiO₃, Ni(Ti)+Ti₂O₃+rich Ti, and Ni₃Ti from outside to the inside. The addition of the Hf element improves the high-temperature oxidation resistance. A schematic oxidation mechanism of Ni-rich NiTi(-Hf) alloy is proposed to explain the observed results.

源语言	英语
文章编号	127114
期刊	Materials Chemistry and Physics
卷	295
DOI	https://doi.org/10.1016/j.matchemphys.2022.127114
出版状态	已出版 - 1 2月 2023

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10.1016/j.matchemphys.2022.127114

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@article{4bb5c042b20f40b9bdae402a267bf0ef,

title = "Microstructure evolution of Ni-rich NiTi(-Hf) alloy during thermal oxidation at different temperatures",

abstract = "The oxidation behavior of Ni-rich NiTi(-Hf) alloy at the temperature range from 400 to 950 °C is investigated in this paper. For Ni-rich NiTi alloy, the results show that the oxidation kinetics follow the logarithmic law at 400 °C and obey the parabolic law from 500 to 950 °C. After high-temperature oxidation, the observed multi-layered scale structure consists of TiO2+Ti2O3+NiTiO3, Ni(Ti)+Ti2O3+rich Ti, and Ni3Ti from outside to the inside. The addition of the Hf element improves the high-temperature oxidation resistance. A schematic oxidation mechanism of Ni-rich NiTi(-Hf) alloy is proposed to explain the observed results.",

keywords = "Ni-rich NiTi alloy, Oxidation mechanism, Spallation, Wide temperature range",

author = "B. Li and Zheng, \{L. J.\} and Chen, \{X. M.\} and H. Zhang",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2023",

month = feb,

day = "1",

doi = "10.1016/j.matchemphys.2022.127114",

language = "英语",

volume = "295",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Microstructure evolution of Ni-rich NiTi(-Hf) alloy during thermal oxidation at different temperatures

AU - Li, B.

AU - Zheng, L. J.

AU - Chen, X. M.

AU - Zhang, H.

PY - 2023/2/1

Y1 - 2023/2/1

N2 - The oxidation behavior of Ni-rich NiTi(-Hf) alloy at the temperature range from 400 to 950 °C is investigated in this paper. For Ni-rich NiTi alloy, the results show that the oxidation kinetics follow the logarithmic law at 400 °C and obey the parabolic law from 500 to 950 °C. After high-temperature oxidation, the observed multi-layered scale structure consists of TiO2+Ti2O3+NiTiO3, Ni(Ti)+Ti2O3+rich Ti, and Ni3Ti from outside to the inside. The addition of the Hf element improves the high-temperature oxidation resistance. A schematic oxidation mechanism of Ni-rich NiTi(-Hf) alloy is proposed to explain the observed results.

AB - The oxidation behavior of Ni-rich NiTi(-Hf) alloy at the temperature range from 400 to 950 °C is investigated in this paper. For Ni-rich NiTi alloy, the results show that the oxidation kinetics follow the logarithmic law at 400 °C and obey the parabolic law from 500 to 950 °C. After high-temperature oxidation, the observed multi-layered scale structure consists of TiO2+Ti2O3+NiTiO3, Ni(Ti)+Ti2O3+rich Ti, and Ni3Ti from outside to the inside. The addition of the Hf element improves the high-temperature oxidation resistance. A schematic oxidation mechanism of Ni-rich NiTi(-Hf) alloy is proposed to explain the observed results.

KW - Ni-rich NiTi alloy

KW - Oxidation mechanism

KW - Spallation

KW - Wide temperature range

UR - https://www.scopus.com/pages/publications/85143493932

U2 - 10.1016/j.matchemphys.2022.127114

DO - 10.1016/j.matchemphys.2022.127114

M3 - 文章

AN - SCOPUS:85143493932

SN - 0254-0584

VL - 295

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

M1 - 127114

ER -

Microstructure evolution of Ni-rich NiTi(-Hf) alloy during thermal oxidation at different temperatures

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