Grain size effect on cyclic oxidation of (TiB 2+TiC)/Ni 3Al composites

Guo Jian Cao; Hong Yu Xu; Zhen Zhu Zheng; Lin Geng; Naka Masaaki

doi:10.1016/S1003-6326(11)61360-5

Grain size effect on cyclic oxidation of (TiB ₂+TiC)/Ni ₃Al composites

Guo Jian Cao^*
, Hong Yu Xu
, Zhen Zhu Zheng
, Lin Geng
, Naka Masaaki

^*Corresponding author for this work

Harbin University of Science and Technology
Harbin Institute of Technology
The University of Osaka

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

19 Scopus citations

Abstract

(TiB ₂+TiC)/Ni ₃Al composites were prepared by mechanical alloying of elemental powders and subsequently spark plasma sintering. Microstructure of (TiB ₂+TiC)/Ni ₃Al composite sintered at 950°C was finer than that of composite sintered at 1050°C. The influence of grain size on cyclic oxidation behavior was investigated. Cyclic oxidation results showed that the composite sintered at 950°C had smaller mass gains than the composite sintered at 1050°C. XRD and EDS results indicate that finer grain size is beneficial for increasing the oxidation resistance by improving the formation of a continuous TiO ₂ outer layer and a continuous Al ₂O ₃ inner layer on the surface of the composites sintered at 950°C.

Original language	English
Pages (from-to)	1588-1593
Number of pages	6
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	22
Issue number	7
DOIs	https://doi.org/10.1016/S1003-6326(11)61360-5
State	Published - Jul 2012
Externally published	Yes

Keywords

composites
grain refinement
mechanical alloying
nickel aluminides
oxidation

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10.1016/S1003-6326(11)61360-5

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title = "Grain size effect on cyclic oxidation of (TiB 2+TiC)/Ni 3Al composites",

abstract = "(TiB 2+TiC)/Ni 3Al composites were prepared by mechanical alloying of elemental powders and subsequently spark plasma sintering. Microstructure of (TiB 2+TiC)/Ni 3Al composite sintered at 950°C was finer than that of composite sintered at 1050°C. The influence of grain size on cyclic oxidation behavior was investigated. Cyclic oxidation results showed that the composite sintered at 950°C had smaller mass gains than the composite sintered at 1050°C. XRD and EDS results indicate that finer grain size is beneficial for increasing the oxidation resistance by improving the formation of a continuous TiO 2 outer layer and a continuous Al 2O 3 inner layer on the surface of the composites sintered at 950°C.",

keywords = "composites, grain refinement, mechanical alloying, nickel aluminides, oxidation",

author = "Cao, \{Guo Jian\} and Xu, \{Hong Yu\} and Zheng, \{Zhen Zhu\} and Lin Geng and Naka Masaaki",

year = "2012",

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doi = "10.1016/S1003-6326(11)61360-5",

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journal = "Transactions of Nonferrous Metals Society of China (English Edition)",

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publisher = "Nonferrous Metals Society of China",

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TY - JOUR

T1 - Grain size effect on cyclic oxidation of (TiB 2+TiC)/Ni 3Al composites

AU - Cao, Guo Jian

AU - Xu, Hong Yu

AU - Zheng, Zhen Zhu

AU - Geng, Lin

AU - Masaaki, Naka

PY - 2012/7

Y1 - 2012/7

N2 - (TiB 2+TiC)/Ni 3Al composites were prepared by mechanical alloying of elemental powders and subsequently spark plasma sintering. Microstructure of (TiB 2+TiC)/Ni 3Al composite sintered at 950°C was finer than that of composite sintered at 1050°C. The influence of grain size on cyclic oxidation behavior was investigated. Cyclic oxidation results showed that the composite sintered at 950°C had smaller mass gains than the composite sintered at 1050°C. XRD and EDS results indicate that finer grain size is beneficial for increasing the oxidation resistance by improving the formation of a continuous TiO 2 outer layer and a continuous Al 2O 3 inner layer on the surface of the composites sintered at 950°C.

AB - (TiB 2+TiC)/Ni 3Al composites were prepared by mechanical alloying of elemental powders and subsequently spark plasma sintering. Microstructure of (TiB 2+TiC)/Ni 3Al composite sintered at 950°C was finer than that of composite sintered at 1050°C. The influence of grain size on cyclic oxidation behavior was investigated. Cyclic oxidation results showed that the composite sintered at 950°C had smaller mass gains than the composite sintered at 1050°C. XRD and EDS results indicate that finer grain size is beneficial for increasing the oxidation resistance by improving the formation of a continuous TiO 2 outer layer and a continuous Al 2O 3 inner layer on the surface of the composites sintered at 950°C.

KW - composites

KW - grain refinement

KW - mechanical alloying

KW - nickel aluminides

KW - oxidation

UR - https://www.scopus.com/pages/publications/84864984100

U2 - 10.1016/S1003-6326(11)61360-5

DO - 10.1016/S1003-6326(11)61360-5

M3 - 文章

AN - SCOPUS:84864984100

SN - 1003-6326

VL - 22

SP - 1588

EP - 1593

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

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

IS - 7

ER -

Grain size effect on cyclic oxidation of (TiB ₂+TiC)/Ni ₃Al composites

Abstract

Keywords

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