Fabrication of nano-TiC reinforced high Nb-TiAl nanocomposites by electron beam melting
Fabrication of nano-TiC reinforced high Nb-TiAl nanocomposites by electron beam melting
Electron beam melting (EBM) has been successfully applied to fabricate TiC reinforced high Nb-containing TiAl matrix (TiC/Nb-TiAl) nanocomposite. The optimised combination of focus offset and line energy in the melt stage have been developed to achieve a uniformly distributed nano-TiC particles within the TiAl matrix. The EBM TiC/Nb-TiAl nanocomposite has a microhardness of 393 ± 31 HV0.2, that is 24% higher than that for high Nb-TiAl alloy alone. It is interesting to note that the uniformly distributed nano-TiC particles lead to the formation of equiaxed α2-phase in TiAl matrix, instead of those commonly observed γ-phase in previous EBM γ-TiAl work.
Kan, W.
aeaf18bc-9dfe-463f-a51b-5d75865eb606
Chen, B.
be54a9a8-da2a-4e6f-ae0e-0b076be87daf
Peng, H.
0ea922b8-8dd7-4769-a1b3-726b13ac6aea
Liang, Y.
b9fc4a5b-27ce-46ca-870e-61cf5ee52f30
Lin, J.
45e16f12-2594-409a-9744-8af7bc8c852c
31 October 2019
Kan, W.
aeaf18bc-9dfe-463f-a51b-5d75865eb606
Chen, B.
be54a9a8-da2a-4e6f-ae0e-0b076be87daf
Peng, H.
0ea922b8-8dd7-4769-a1b3-726b13ac6aea
Liang, Y.
b9fc4a5b-27ce-46ca-870e-61cf5ee52f30
Lin, J.
45e16f12-2594-409a-9744-8af7bc8c852c
Kan, W., Chen, B. and Peng, H.
,
et al.
(2019)
Fabrication of nano-TiC reinforced high Nb-TiAl nanocomposites by electron beam melting.
Materials Letters, 259, [126856].
(doi:10.1016/j.matlet.2019.126856).
Abstract
Electron beam melting (EBM) has been successfully applied to fabricate TiC reinforced high Nb-containing TiAl matrix (TiC/Nb-TiAl) nanocomposite. The optimised combination of focus offset and line energy in the melt stage have been developed to achieve a uniformly distributed nano-TiC particles within the TiAl matrix. The EBM TiC/Nb-TiAl nanocomposite has a microhardness of 393 ± 31 HV0.2, that is 24% higher than that for high Nb-TiAl alloy alone. It is interesting to note that the uniformly distributed nano-TiC particles lead to the formation of equiaxed α2-phase in TiAl matrix, instead of those commonly observed γ-phase in previous EBM γ-TiAl work.
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Accepted/In Press date: 22 October 2019
e-pub ahead of print date: 24 October 2019
Published date: 31 October 2019
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Local EPrints ID: 489900
URI: http://eprints.soton.ac.uk/id/eprint/489900
ISSN: 0167-577X
PURE UUID: 05200a72-df00-4a50-946e-945921fd8ff4
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Date deposited: 07 May 2024 16:41
Last modified: 08 May 2024 02:08
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Author:
W. Kan
Author:
B. Chen
Author:
H. Peng
Author:
Y. Liang
Author:
J. Lin
Corporate Author: et al.
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