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OALib Journal期刊
ISSN: 2333-9721
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Fabrication and room--temperature compressive behavior of TiCp/Mg matrix composites by $in$ $situ$ reactive infiltration technique
原位反应渗透法TiCp/Mg复合材料的制备和性能

Keywords: composite,magnesium matrix composites,TiC,in situ reactive infiltration,compressive behavior
复合材料
,镁基复合材料,TiC,原位反应渗透,压缩性能,原位反应渗透法,TiCp,基复合材料组织,制备和性能,compressive,behavior,Fabrication,technique,in,situ,reactive,infiltration,composites,条件,应变速率,压缩强度,分布均匀,网片,互穿,颗粒状,增强相,结果,压缩性能,研究

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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 ma- trix 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 mag- nesium 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 0.01s~(-1).

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