Microstructure and Properties of TiB2/AlFeNiCoCr Composites by Spark Plasma Sintering

Dai Hong Xiao; Min Dong Wu

doi:10.4028/www.scientific.net/KEM.842.83

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 842Microstructure and Properties of TiB2/AlFeNiCoCr...

Microstructure and Properties of TiB₂/AlFeNiCoCr Composites by Spark Plasma Sintering

Abstract:

TiB₂/AlFeNiCoCr high-entropy-alloy-matrix composites were fabricated by spark plasma sintering. Effects of SPS process on microstructure and mechanical properties of 0.5 vol.% TiB₂/AlFeNiCoCr composites were studied using X-ray diffraction, density testing, scanning electron microscopy, mechanical property testing. It is shown that increasing of sintering temperature and pressure can improve the relative density and compressive properties of 5 vol. %TiB₂/AlCoCrFeNi composites. During the spark plasma sintering, there is phase evolution in the composites. The 5 vol. % TiB₂/AlCoCrFeNi composite after sintering at 1200 °C and 30 ~ 45 MPa is composed of phases BCC, B2, FCC, σ and TiB₂.

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Key Engineering Materials (Volume 842)

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83-89

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https://doi.org/10.4028/www.scientific.net/KEM.842.83

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Online since:

May 2020

Authors:

Dai Hong Xiao*, Min Dong Wu

Keywords:

High-Entropy-Alloy-Matrix Composite, Mechanical Properties, Spark Plasma Sintering Microstructure

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