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| Fabrication and room--temperature compressive behavior of TiCp/Mg matrix composites by $in$ $situ$ reactive infiltration technique |
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| 中国科学院金属研究所 |
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Cite this article:
;. Fabrication and room--temperature compressive behavior of TiCp/Mg matrix composites by $in$ $situ$ reactive infiltration technique. Chin J Mater Res, 2004, 18(2): 193-198.
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Abstract The $in$ $situ$ exothermic reaction between Ti and C elements combined with infiltration of molten magnesium into TiCp was adopted to fabricate TiCp/Mg and TiCp/AZ91D magnesium matrix composites. The phase composition of the $in$ $situ$ formed reinforcement TiC and their morphologies were analyzed, and the room--temperature compressive behaviors were also studied for these two magnesium matrix composites.The results showed that dense composite microstructures were obtained by the present reactive infiltration process. The $in$ $situ$ TiCp
reinforcement particulates uniformly formed within the Mg matrix and took in forms of fine particles, flakes and interpenetrating networks. The compressive strengths for the as--fabricated TiCp/Mg and TiCp/AZ91D
composites reach about 598 and 650 MPa, respectively, at room temperature and a strain rate of 0.01 s$^{-1}$.
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Received: 21 May 2004
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