2019•IOP Conference Series Materials Science and EngineeringOpen access

Effect of TiB2 on Properties of TiAl-based Alloy

Bin Yan, Liying Yang, Zheng Sun, Qimeng Wang

Abstract

Abstract In this paper, we added particle reinforced phase TiB2 in TiAl-based composites, TiB2/TiAl matrix composites were prepared by using powder metallurgy vacuum hot pressing sintering technology, and the effects of TiB2 particle reinforced phase on the mechanical and tribological properties of TiAl-based alloy were studied. It was found that the hardness and density of TiAl-based alloy composites increased with the addition of TiB2, the friction coefficient and the wear loss decreased with the increase of TiB2 content in TiAl-based alloy. The wear resistance of TiAl-based alloy can be improved by adding TiB2 particles.

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Key concepts: Materials science, Alloy, Powder metallurgy, Metallurgy, Tribology, Hot pressing, Particle (ecology), Phase (matter)