Nb-Al diffusion reaction in high Nb containing TiAl porous alloys

F. Wang; Y. F. Liang; S. L. Shang; Z. K. Liu; J. P. Lin

doi:10.1179/1743284714Y.0000000725

Nb-Al diffusion reaction in high Nb containing TiAl porous alloys

F. Wang, Y. F. Liang, S. L. Shang, Z. K. Liu, J. P. Lin

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8 Scopus citations

Abstract

High Nb containing TiAl porous alloys were synthesised by powder metallurgy (PM). In order to reveal reaction mechanism of Nb in preparation of the porous alloys, Nb-Al diffusion reaction was investigated using diffusion couples at relatively low temperatures of 600-800°C. The porous Nb-Al diffusion layer was identified as NbAl₃ phase and the thickness of diffusion layer indicated that the Nb-Al diffusion mainly occurred at 800°C. In addition, the pore diameter distribution indicated that Nb-Al diffusion also contributed to the increase in pore diameter. According to these results, the diffusion reaction model was established for high Nb containing TiAl porous alloys.

Original language	English (US)
Pages (from-to)	1388-1391
Number of pages	4
Journal	Materials Science and Technology (United Kingdom)
Volume	31
Issue number	11
DOIs	https://doi.org/10.1179/1743284714Y.0000000725
State	Published - Aug 1 2015

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Nb-Al diffusion reaction in high Nb containing TiAl porous alloys",

abstract = "High Nb containing TiAl porous alloys were synthesised by powder metallurgy (PM). In order to reveal reaction mechanism of Nb in preparation of the porous alloys, Nb-Al diffusion reaction was investigated using diffusion couples at relatively low temperatures of 600-800°C. The porous Nb-Al diffusion layer was identified as NbAl3 phase and the thickness of diffusion layer indicated that the Nb-Al diffusion mainly occurred at 800°C. In addition, the pore diameter distribution indicated that Nb-Al diffusion also contributed to the increase in pore diameter. According to these results, the diffusion reaction model was established for high Nb containing TiAl porous alloys.",

author = "F. Wang and Liang, {Y. F.} and Shang, {S. L.} and Liu, {Z. K.} and Lin, {J. P.}",

note = "Publisher Copyright: {\textcopyright} 2015 Institute of Materials, Minerals and Mining.",

year = "2015",

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doi = "10.1179/1743284714Y.0000000725",

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T1 - Nb-Al diffusion reaction in high Nb containing TiAl porous alloys

AU - Wang, F.

AU - Liang, Y. F.

AU - Shang, S. L.

AU - Liu, Z. K.

AU - Lin, J. P.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - High Nb containing TiAl porous alloys were synthesised by powder metallurgy (PM). In order to reveal reaction mechanism of Nb in preparation of the porous alloys, Nb-Al diffusion reaction was investigated using diffusion couples at relatively low temperatures of 600-800°C. The porous Nb-Al diffusion layer was identified as NbAl3 phase and the thickness of diffusion layer indicated that the Nb-Al diffusion mainly occurred at 800°C. In addition, the pore diameter distribution indicated that Nb-Al diffusion also contributed to the increase in pore diameter. According to these results, the diffusion reaction model was established for high Nb containing TiAl porous alloys.

AB - High Nb containing TiAl porous alloys were synthesised by powder metallurgy (PM). In order to reveal reaction mechanism of Nb in preparation of the porous alloys, Nb-Al diffusion reaction was investigated using diffusion couples at relatively low temperatures of 600-800°C. The porous Nb-Al diffusion layer was identified as NbAl3 phase and the thickness of diffusion layer indicated that the Nb-Al diffusion mainly occurred at 800°C. In addition, the pore diameter distribution indicated that Nb-Al diffusion also contributed to the increase in pore diameter. According to these results, the diffusion reaction model was established for high Nb containing TiAl porous alloys.

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EP - 1391

JO - Metal Science J

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Nb-Al diffusion reaction in high Nb containing TiAl porous alloys

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