High-temperature oxidation behaviour of a single-phase (Mo,Ti)5Si3 (Mo--Si--Ti) alloy

作者: Steffen Burk , Bronislava Gorr , Hans-Jürgen Christ , Daniel Schliephake , Martin Heilmaier

DOI: 10.1016/J.SCRIPTAMAT.2011.10.042

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摘要: The alloy composition Mo–37Si–40Ti (at.%) was synthesized by arc melting in order to obtain nearly single-phase (Mo,Ti) 5 Si 3 . At 750–1300 °C, the intermetallic compound found be superior both Mo and Ti with regard oxidation resistance. Upon oxidation, formation of a protective SiO 2 –TiO duplex scale observed, which dramatically reduces outward diffusion Ti. results indicate that alloying is promising concept further improve resistance Mo-based alloys such as Mo–Si–B.

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