High-temperature oxidation of intermetallics based on Ti-Al-Si system

Knaislová Anna - VŠCHT Praha (Czech Republic)

Ti-Al-Si alloys excel with their low density and good resistance against high-temperature oxidation in comparison with so far commonly used nickel alloys. Silicon in Ti-Al-Si alloys has significant positive effect on high-temperature oxidation due to increasing adhesion of oxide layer. The aim of this work is the description of resistance against oxidation of Ti-Al-Si alloys prepared by reactive sintering and compaction by Spark Plasma Sintering and evaluation of thermal stability of the alloys at 1000 °C, which exceeds temperature limit of application alloys based on Ti-Al system.

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