Fabrication of nano-TiC reinforced high Nb-TiAl nanocomposites by electron beam melting

W. Kan; B. Chen; H. Peng; Y. Liang; J. Lin

doi:10.1016/j.matlet.2019.126856

Fabrication of nano-TiC reinforced high Nb-TiAl nanocomposites by electron beam melting

W. Kan
, B. Chen
, H. Peng^*
, Y. Liang
, J. Lin

^*此作品的通讯作者

材料科学与工程学院

科研成果: 期刊稿件 › 文章 › 同行评审

27 引用（Scopus）

摘要

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 HV_0.2, 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.

源语言	英语
文章编号	126856
期刊	Materials Letters
卷	259
DOI	https://doi.org/10.1016/j.matlet.2019.126856
出版状态	已出版 - 15 1月 2020

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title = "Fabrication of nano-TiC reinforced high Nb-TiAl nanocomposites by electron beam melting",

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.",

keywords = "Composite materials, Metals and alloys, Nanoparticles",

author = "W. Kan and B. Chen and H. Peng and Y. Liang and J. Lin",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2020",

month = jan,

day = "15",

doi = "10.1016/j.matlet.2019.126856",

language = "英语",

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TY - JOUR

T1 - Fabrication of nano-TiC reinforced high Nb-TiAl nanocomposites by electron beam melting

AU - Kan, W.

AU - Chen, B.

AU - Peng, H.

AU - Liang, Y.

AU - Lin, J.

PY - 2020/1/15

Y1 - 2020/1/15

N2 - 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.

AB - 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.

KW - Composite materials

KW - Metals and alloys

KW - Nanoparticles

UR - https://www.scopus.com/pages/publications/85074102340

U2 - 10.1016/j.matlet.2019.126856

DO - 10.1016/j.matlet.2019.126856

M3 - 文章

AN - SCOPUS:85074102340

SN - 0167-577X

VL - 259

JO - Materials Letters

JF - Materials Letters

M1 - 126856

ER -

Fabrication of nano-TiC reinforced high Nb-TiAl nanocomposites by electron beam melting

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