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Abstract In this work, in situ formation of low interstitials Ti-TiC composites with a high relative density has been fabricated by the combination of TiH2-CH4 reaction and vacuum pressure-less sintering.… Click to show full abstract
Abstract In this work, in situ formation of low interstitials Ti-TiC composites with a high relative density has been fabricated by the combination of TiH2-CH4 reaction and vacuum pressure-less sintering. During the gas-solid reaction, TiH2 reacted with CH4 to form TiC particles on the powder surface. As a consequence, low interstitials contents (O 10%) is important for following thermomechanical processing. In summary, the achievement of high performance Ti-TiC composites was attributed to the grain refinement, in-situ TiC strengthening, as well as a solid solution strengthening of the O, N and C elements in the Ti matrix.
Journal Title: Journal of Alloys and Compounds
Year Published: 2018
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