article · Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications
This study used SiCp, SiCw, B 4 C, and GPLs as reinforcements for Ti750 matrix alloy and composites synthesized by spark plasma sintering. The oxidation performances of the composites were then evaluated at 800 °C. 5 vol.% SiCp reinforced Ti750 composite recorded the least oxidation weight gain of 3.80 mg.cm −2 , about 41.8% of the base alloy. The average oxidation rates K + of the five materials at 800 °C were less than 1 g.m −2 .h −1 , indicating all materials were within the anti-oxidation grade with excellent anti-oxidation performance. The oxidation products of the samples contained TiO 2 , Al 2 O 3 , and SiO 2 . 5 vol.% SiCp reinforced Ti750 composite had significantly flatter and denser oxide film, which was well bonded with the matrix thus having a better protective effect than the matrix material. With the addition of SiCp, the thickness of the oxide film decreased, and the resistance of the material significantly improved its high-temperature oxidation performance.
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DOI: 10.1177/14644207221126996
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