首页|Fabrication and Mechanical Properties of TiC/TiAl Composites
Fabrication and Mechanical Properties of TiC/TiAl Composites
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NETL
NSTL
TiC/TiAl composites with different TiC content were fabricated by rapid heating technique of spark plasma sintering (SPS). The effect of TiC particles on microstructure and mechanical properties of TiAl matrix was investigated. The results indicate that grain sizes of TiAl matrix decrease and mechanical properties are improved because of the addition of TiC panicles. The composites display a 26.8 percent increase in bending strength when 10 wt percent TiC is added and 43.8 percent improvement in fracture toughness when 5 wt percent TiC is added compared to values of TiC-free materials. Grain-refinement and dispersion-strengthening were the main strengthening mechanism. The improvement of fracture toughness was due to the deflexion of TiC particles to the crack.
NETL
NSTL
