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In Situ Synthesis of (TiC + Ti 3 SiC 2 + Ti 5 Si 3 )/Ti6Al4V Composites with Tailored Two‐scale Architecture
Author(s) -
Liu C.,
Huang L. J.,
Geng L.,
Jiao Y.,
Tang A.
Publication year - 2015
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201400585
Subject(s) - materials science , equiaxed crystals , ductility (earth science) , composite material , nanoscopic scale , titanium alloy , particle (ecology) , titanium , alloy , metallurgy , nanotechnology , creep , oceanography , geology
In situ TiC particle, Ti 3 SiC 2 bar and ultrafine Ti 5 Si 3 needle reinforced Ti6Al4V ((TiC+Ti 3 SiC 2 +Ti 5 Si 3 )/Ti6Al4V) composites with a tailored distribution were sucessfully designed and fabricated. The first‐scale tailored architecture of reinforcement is the in situ synthesized Ti 3 SiC 2 bars and near‐equiaxed TiC particles on the network boundary around Ti6Al4V particles. The secondary‐scale architecture is the ultrafine Ti 5 Si 3 needles precipitated in intergranular β phase of center Ti6Al4V matrix particle. The results showed that the two‐scale tailored architecture of different reinforcements can significantly improve strength remained with moderate ductility of the composites.