Oriented porous anodic oxide layers on Ti-50Al with outstanding oxidation resistance at 800 °C

Yu Su; Fantao Kong; Zhen bo Wang; Xiaopeng Wang; Yuyong Chen

doi:10.1016/j.corsci.2019.108146

Oriented porous anodic oxide layers on Ti-50Al with outstanding oxidation resistance at 800 °C

Yu Su, Fantao Kong, Zhen bo Wang, Xiaopeng Wang, Yuyong Chen

Harbin Institute of Technology

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

13 Scopus citations

Abstract

A fluoride-containing anodic oxide layer with oriented porous structure coated Ti-50Al intermetallic can be fabricated by anodizing in sulfuric acid (H₂SO₄) solution containing a small quantity of hydrofluoric acid (HF). X-ray photoelectron spectroscopy (XPS) analysis reveals that the porous anodic oxide layer consists mainly of TiO₂, Al₂O₃, titanium fluoride and aluminum fluoride. Cyclic oxidation tests indicate that all Ti-50Al samples anodized in fluorine-containing electrolyte exhibit outstanding oxidation resistance with little or even no scale spallation at 800 °C. The improvement of oxidation resistance is mainly attributed to the fluorine effect and the oriented porous structure of anodic oxide layer.

Original language	English
Article number	108146
Journal	Corrosion Science
Volume	159
DOIs	https://doi.org/10.1016/j.corsci.2019.108146
State	Published - Oct 2019
Externally published	Yes

Keywords

Anodizing
High temperature oxidation resistance
Oriented porous structure
Ti-50Al

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10.1016/j.corsci.2019.108146

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title = "Oriented porous anodic oxide layers on Ti-50Al with outstanding oxidation resistance at 800 °C",

abstract = "A fluoride-containing anodic oxide layer with oriented porous structure coated Ti-50Al intermetallic can be fabricated by anodizing in sulfuric acid (H2SO4) solution containing a small quantity of hydrofluoric acid (HF). X-ray photoelectron spectroscopy (XPS) analysis reveals that the porous anodic oxide layer consists mainly of TiO2, Al2O3, titanium fluoride and aluminum fluoride. Cyclic oxidation tests indicate that all Ti-50Al samples anodized in fluorine-containing electrolyte exhibit outstanding oxidation resistance with little or even no scale spallation at 800 °C. The improvement of oxidation resistance is mainly attributed to the fluorine effect and the oriented porous structure of anodic oxide layer.",

keywords = "Anodizing, High temperature oxidation resistance, Oriented porous structure, Ti-50Al",

author = "Yu Su and Fantao Kong and Wang, {Zhen bo} and Xiaopeng Wang and Yuyong Chen",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

month = oct,

doi = "10.1016/j.corsci.2019.108146",

language = "英语",

volume = "159",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Oriented porous anodic oxide layers on Ti-50Al with outstanding oxidation resistance at 800 °C

AU - Su, Yu

AU - Kong, Fantao

AU - Wang, Zhen bo

AU - Wang, Xiaopeng

AU - Chen, Yuyong

PY - 2019/10

Y1 - 2019/10

N2 - A fluoride-containing anodic oxide layer with oriented porous structure coated Ti-50Al intermetallic can be fabricated by anodizing in sulfuric acid (H2SO4) solution containing a small quantity of hydrofluoric acid (HF). X-ray photoelectron spectroscopy (XPS) analysis reveals that the porous anodic oxide layer consists mainly of TiO2, Al2O3, titanium fluoride and aluminum fluoride. Cyclic oxidation tests indicate that all Ti-50Al samples anodized in fluorine-containing electrolyte exhibit outstanding oxidation resistance with little or even no scale spallation at 800 °C. The improvement of oxidation resistance is mainly attributed to the fluorine effect and the oriented porous structure of anodic oxide layer.

AB - A fluoride-containing anodic oxide layer with oriented porous structure coated Ti-50Al intermetallic can be fabricated by anodizing in sulfuric acid (H2SO4) solution containing a small quantity of hydrofluoric acid (HF). X-ray photoelectron spectroscopy (XPS) analysis reveals that the porous anodic oxide layer consists mainly of TiO2, Al2O3, titanium fluoride and aluminum fluoride. Cyclic oxidation tests indicate that all Ti-50Al samples anodized in fluorine-containing electrolyte exhibit outstanding oxidation resistance with little or even no scale spallation at 800 °C. The improvement of oxidation resistance is mainly attributed to the fluorine effect and the oriented porous structure of anodic oxide layer.

KW - Anodizing

KW - High temperature oxidation resistance

KW - Oriented porous structure

KW - Ti-50Al

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U2 - 10.1016/j.corsci.2019.108146

DO - 10.1016/j.corsci.2019.108146

M3 - 文章

AN - SCOPUS:85070918838

SN - 0010-938X

VL - 159

JO - Corrosion Science

JF - Corrosion Science

M1 - 108146

ER -

Oriented porous anodic oxide layers on Ti-50Al with outstanding oxidation resistance at 800 °C

Abstract

Keywords

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Oriented porous anodic oxide layers on Ti-50Al with outstanding oxidation resistance at 800 °C

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Keywords

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Oriented porous anodic oxide layers on Ti-50Al with outstanding oxidation resistance at 800 °C