Oxidation behavior of Ti2AlC/TiAl composites

Zun Jie Wei; Hong Wei Wang; Wen Bin Fang; Song Yan Zeng

Oxidation behavior of Ti₂AlC/TiAl composites

Zun Jie Wei
, Hong Wei Wang^*
, Wen Bin Fang
, Song Yan Zeng

^*Corresponding author for this work

Harbin Institute of Technology

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

1 Scopus citations

Abstract

The oxidation behavior of Ti-34Al alloy and Ti₂AlC/TiAl composites was studied at temperatures ranging from 800 to 1000°C. Results show that the oxidation resistance of Ti₂AlC/TiAl composites is lower than that of TiAl alloy, and the growth rate of the oxidation scale increases with increasing addition of Ti₂AlC. The oxidation resistance of Ti₂AlC/TiAl composites significantly decreases at 900°C and the mass gain is above ten times that at 800°C. However, the mass gain is lowered when exposed at 1000°C. The oxidation kinetics of the Ti ₂AlC/TiAl composites is very complicated, including linear laws and parabolic laws under different conditions. The oxidation scale of the composites is composed of R-TiO₂ and α-Al₂O₃ at 800°C, and R-TiO₂ at 900°C and 1000°C. The R-TiO ₂ is columnar and grows with increasing oxidation temperature and volume fraction of Ti₂AlC.

Original language	English
Pages (from-to)	218-222
Number of pages	5
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	13
Issue number	SPEC. ISS.
State	Published - May 2003
Externally published	Yes

Keywords

Oxidation
TiAl-matrix composites
TiAlC

Cite this

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title = "Oxidation behavior of Ti2AlC/TiAl composites",

abstract = "The oxidation behavior of Ti-34Al alloy and Ti2AlC/TiAl composites was studied at temperatures ranging from 800 to 1000°C. Results show that the oxidation resistance of Ti2AlC/TiAl composites is lower than that of TiAl alloy, and the growth rate of the oxidation scale increases with increasing addition of Ti2AlC. The oxidation resistance of Ti2AlC/TiAl composites significantly decreases at 900°C and the mass gain is above ten times that at 800°C. However, the mass gain is lowered when exposed at 1000°C. The oxidation kinetics of the Ti 2AlC/TiAl composites is very complicated, including linear laws and parabolic laws under different conditions. The oxidation scale of the composites is composed of R-TiO2 and α-Al2O3 at 800°C, and R-TiO2 at 900°C and 1000°C. The R-TiO 2 is columnar and grows with increasing oxidation temperature and volume fraction of Ti2AlC.",

keywords = "Oxidation, TiAl-matrix composites, TiAlC",

author = "Wei, \{Zun Jie\} and Wang, \{Hong Wei\} and Fang, \{Wen Bin\} and Zeng, \{Song Yan\}",

year = "2003",

month = may,

language = "英语",

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TY - JOUR

T1 - Oxidation behavior of Ti2AlC/TiAl composites

AU - Wei, Zun Jie

AU - Wang, Hong Wei

AU - Fang, Wen Bin

AU - Zeng, Song Yan

PY - 2003/5

Y1 - 2003/5

N2 - The oxidation behavior of Ti-34Al alloy and Ti2AlC/TiAl composites was studied at temperatures ranging from 800 to 1000°C. Results show that the oxidation resistance of Ti2AlC/TiAl composites is lower than that of TiAl alloy, and the growth rate of the oxidation scale increases with increasing addition of Ti2AlC. The oxidation resistance of Ti2AlC/TiAl composites significantly decreases at 900°C and the mass gain is above ten times that at 800°C. However, the mass gain is lowered when exposed at 1000°C. The oxidation kinetics of the Ti 2AlC/TiAl composites is very complicated, including linear laws and parabolic laws under different conditions. The oxidation scale of the composites is composed of R-TiO2 and α-Al2O3 at 800°C, and R-TiO2 at 900°C and 1000°C. The R-TiO 2 is columnar and grows with increasing oxidation temperature and volume fraction of Ti2AlC.

AB - The oxidation behavior of Ti-34Al alloy and Ti2AlC/TiAl composites was studied at temperatures ranging from 800 to 1000°C. Results show that the oxidation resistance of Ti2AlC/TiAl composites is lower than that of TiAl alloy, and the growth rate of the oxidation scale increases with increasing addition of Ti2AlC. The oxidation resistance of Ti2AlC/TiAl composites significantly decreases at 900°C and the mass gain is above ten times that at 800°C. However, the mass gain is lowered when exposed at 1000°C. The oxidation kinetics of the Ti 2AlC/TiAl composites is very complicated, including linear laws and parabolic laws under different conditions. The oxidation scale of the composites is composed of R-TiO2 and α-Al2O3 at 800°C, and R-TiO2 at 900°C and 1000°C. The R-TiO 2 is columnar and grows with increasing oxidation temperature and volume fraction of Ti2AlC.

KW - Oxidation

KW - TiAl-matrix composites

KW - TiAlC

UR - https://www.scopus.com/pages/publications/33845664870

M3 - 文章

AN - SCOPUS:33845664870

SN - 1003-6326

VL - 13

SP - 218

EP - 222

JO - Transactions of Nonferrous Metals Society of China (English Edition)

JF - Transactions of Nonferrous Metals Society of China (English Edition)

IS - SPEC. ISS.

ER -

Oxidation behavior of Ti₂AlC/TiAl composites

Abstract

Keywords

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