Effect of Ceramic Content on the Compression Properties of TiB2-Ti2AlC/TiAl Composites

Effect of Ceramic Content on the Compression Properties of TiB2-Ti2AlC/TiAl Composites

In situ synthesized TiB2-reinforced TiAl composites usually possess high strength. However, it is very expensive to use B powder to synthesize TiB2 particles. Moreover, the strength enhancement of TiB2/TiAl composite is generally at the cost of plasticity. In this study, in situ dual reinforcement T...

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Bibliographic Details
Main Authors: Shili Shu, Cunzhu Tong, Feng Qiu, Qichuan Jiang
Format: Article
Language:English
Published: MDPI AG 2015-11-01
Series:Metals
Subjects:
TiAl
intermetallics
composite
compression properties
Online Access:http://www.mdpi.com/2075-4701/5/4/2200
Description
Summary:In situ synthesized TiB2-reinforced TiAl composites usually possess high strength. However, it is very expensive to use B powder to synthesize TiB2 particles. Moreover, the strength enhancement of TiB2/TiAl composite is generally at the cost of plasticity. In this study, in situ dual reinforcement TiB2-Ti2AlC/TiAl composites were fabricated by using B4C powder as the B and C source, which greatly reduces the potential production cost. The 6 vol. % TiB2-Ti2AlC/TiAl composite fabricated by using the Ti-Al-B4C system shows greatly improved compressive properties, i.e., 316 MPa and 234 MPa higher than those of TiAl alloy and with no sacrifice in plasticity.
ISSN:2075-4701

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