Microstructure and Mechanical Properties of Mg-Based Composites Reinforced with TiB2 Particles

Can Feng Fang; Guang Xu Liu; Ling Gang Meng; Xing Guo Zhang

doi:10.4028/www.scientific.net/AMR.900.141

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 900Microstructure and Mechanical Properties of...

Microstructure and Mechanical Properties of Mg-Based Composites Reinforced with TiB₂ Particles

Abstract:

The effects of in-situ TiB₂ particle fabricated from Al-Ti-B system via the self-propagating high-temperature synthesis (SHS) reaction technology on microstructure and mechanical properties of Mg-Sn-Zn-Al alloy were investigated. The results indicate that the size of the Mg₂Sn and α-Mg+Mg₃₂(Al,Zn)₄₉ phase becomes coarser with the increasing content of Al-Ti-B preform, meanwhile the amount of eutectic α-Mg+Mg₃₂(Al,Zn)₄₉ phase increases too. The addition of Al-Ti-B is favorable toward promoting the strength of composites, but deteriorates elongation. The resulting as-extruded composite material with 4 wt.% Al-Ti-B preform exhibits good overall mechanical properties with an ultimate tensile strength of 291 MPa and an elongation over 2 %.

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Periodical:

Advanced Materials Research (Volume 900)

Pages:

141-145

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.900.141

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Online since:

February 2014

Authors:

Can Feng Fang*, Guang Xu Liu, Ling Gang Meng, Xing Guo Zhang

Keywords:

Composite Material, Microstructure, TiB₂

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