Effect of Melting Temperature on Microstructure of In Situ TiC/Al Composite and Formation Mechanism of TiC

Abstract:

Formation mechanism of TiC in Al matrix at a rather low melting temperature using in situ technology was studied. And effect of the melting temperature on the microstructure of in-situ TiC/Al composite was investigated. The results indicate that, the resultants of TiC and Al₃Ti were found out in the matrix; however, no evidence showed that Al₄C₃, a resultant phase existed probably in TiC/Al composite in accordance with the relative reference, was found out. Compared to the sample of T750, more TiC and less Al₃Ti existed in the sample of T850, and morphography of Al₃Ti changed from block to bar with the increasing melting temperature. The melting temperature affected extremely the reaction speed and the resultants.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 320-324
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.320
• Online since: July 2014
• Authors: Huan Long Yuan*, Ze Hua Zhou, Ze Hua Wang, Zhao Jun Zhong, Xin Zhang, Xiao Feng Xue
• Keywords: Al₃Ti, Al₄C₃, In Situ, Melting Temperature, TiC/Al Composite

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