Enhancing high-temperature oxidation resistance of Ti6Al4V alloy by simple surface aluminization

Xiaoyang Wang; Chun Li; Mingshen Li; Jian Cao

doi:10.1016/j.corsci.2021.109810

Enhancing high-temperature oxidation resistance of Ti6Al4V alloy by simple surface aluminization

Xiaoyang Wang
, Chun Li
, Mingshen Li
, Jian Cao^*

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

37 Scopus citations

Abstract

To enhance the high-temperature oxidation resistance of Ti6Al4V alloy, an anti-oxidation coating is fabricated on Ti6Al4V by simple surface aluminization. The interdiffusion of Al/Ti leads to the TiAl₃ formation. With the increasing diffusion temperature or holding time, Al is depleted, and the generated TiAl₃ reacts with Ti subsequently, forming the Ti-Al IMC layers. A smooth, dense, and uniform coating (Al + TiAl₃) is obtained at 700 ℃/20 min. The cyclic oxidation test exhibits that the coating remarkably enhances the oxidation resistance of Ti6Al4V, and the surface aluminized Ti6Al4V possesses long-term stability (≥ 205 h) at 800 ℃ in air.

Original language	English
Article number	109810
Journal	Corrosion Science
Volume	192
DOIs	https://doi.org/10.1016/j.corsci.2021.109810
State	Published - Nov 2021

Keywords

Corrosion
Oxidation resistance
Surface aluminization
Ti6Al4V alloy

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10.1016/j.corsci.2021.109810

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title = "Enhancing high-temperature oxidation resistance of Ti6Al4V alloy by simple surface aluminization",

abstract = "To enhance the high-temperature oxidation resistance of Ti6Al4V alloy, an anti-oxidation coating is fabricated on Ti6Al4V by simple surface aluminization. The interdiffusion of Al/Ti leads to the TiAl3 formation. With the increasing diffusion temperature or holding time, Al is depleted, and the generated TiAl3 reacts with Ti subsequently, forming the Ti-Al IMC layers. A smooth, dense, and uniform coating (Al + TiAl3) is obtained at 700 ℃/20 min. The cyclic oxidation test exhibits that the coating remarkably enhances the oxidation resistance of Ti6Al4V, and the surface aluminized Ti6Al4V possesses long-term stability (≥ 205 h) at 800 ℃ in air.",

keywords = "Corrosion, Oxidation resistance, Surface aluminization, Ti6Al4V alloy",

author = "Xiaoyang Wang and Chun Li and Mingshen Li and Jian Cao",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = nov,

doi = "10.1016/j.corsci.2021.109810",

language = "英语",

volume = "192",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Enhancing high-temperature oxidation resistance of Ti6Al4V alloy by simple surface aluminization

AU - Wang, Xiaoyang

AU - Li, Chun

AU - Li, Mingshen

AU - Cao, Jian

PY - 2021/11

Y1 - 2021/11

N2 - To enhance the high-temperature oxidation resistance of Ti6Al4V alloy, an anti-oxidation coating is fabricated on Ti6Al4V by simple surface aluminization. The interdiffusion of Al/Ti leads to the TiAl3 formation. With the increasing diffusion temperature or holding time, Al is depleted, and the generated TiAl3 reacts with Ti subsequently, forming the Ti-Al IMC layers. A smooth, dense, and uniform coating (Al + TiAl3) is obtained at 700 ℃/20 min. The cyclic oxidation test exhibits that the coating remarkably enhances the oxidation resistance of Ti6Al4V, and the surface aluminized Ti6Al4V possesses long-term stability (≥ 205 h) at 800 ℃ in air.

AB - To enhance the high-temperature oxidation resistance of Ti6Al4V alloy, an anti-oxidation coating is fabricated on Ti6Al4V by simple surface aluminization. The interdiffusion of Al/Ti leads to the TiAl3 formation. With the increasing diffusion temperature or holding time, Al is depleted, and the generated TiAl3 reacts with Ti subsequently, forming the Ti-Al IMC layers. A smooth, dense, and uniform coating (Al + TiAl3) is obtained at 700 ℃/20 min. The cyclic oxidation test exhibits that the coating remarkably enhances the oxidation resistance of Ti6Al4V, and the surface aluminized Ti6Al4V possesses long-term stability (≥ 205 h) at 800 ℃ in air.

KW - Corrosion

KW - Oxidation resistance

KW - Surface aluminization

KW - Ti6Al4V alloy

UR - https://www.scopus.com/pages/publications/85114408118

U2 - 10.1016/j.corsci.2021.109810

DO - 10.1016/j.corsci.2021.109810

M3 - 文章

AN - SCOPUS:85114408118

SN - 0010-938X

VL - 192

JO - Corrosion Science

JF - Corrosion Science

M1 - 109810

ER -

Enhancing high-temperature oxidation resistance of Ti6Al4V alloy by simple surface aluminization

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Keywords

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