Abstract
Ti matrix composites reinforced with in situ hybrid TiB + TiC reinforcements were processed with the addition of 1, 2, and 3 wt% B4C by pressureless sintering at 1300 °C and 1400 °C. The results of characterizations and mechanical tests revealed that the composites processed at 1400 °C possessed higher hardness and flexural strength compared with their counterparts processed at 1300 °C. In addition, the samples fabricated at 1300 °C contained higher amounts of porosity while those fabricated at 1400 °C contained much less amounts of porosity. Moreover, no residual B4C was found in the micrographs, which was an advantage for this fabrication method. Nonetheless, with increasing the content of B4C at both temperatures, both the hardness and flexural strength enhanced. Therefore, the samples processed at 1400 °C were better than those processed at 1300 °C.
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Zibanejad-Rad, A., Alizadeh, A. & Abbasi, S.M. Effect of Addition of B4C on Microstructure and Mechanical Properties of Ti Matrix Composite Reinforced with In situ Hybrid TiB + TiC Reinforcements Fabricated by Pressureless Sintering. Trans Indian Inst Met 76, 1761–1770 (2023). https://doi.org/10.1007/s12666-023-02887-4
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DOI: https://doi.org/10.1007/s12666-023-02887-4