Effect of network formers and modifiers on the crystallization resistance of oxide glasses

Jiusti, Jeanini; Zanotto, Edgar Dutra; Feller, Steve; Austin, Hayley; Detar, Hanna M.; Bishop, Isabel; Manzani, Danilo; Nakatsuka, Yuko; Watanabe, Yasuhiro; Inoue, Hiroyuki

doi:10.1016/j.jnoncrysol.2020.120359

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Cited by 15 publications

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Hot corrosion behavior of Mo–9.0Si–8.0B

Beck,

König,

Case

et al. 2024

Materials & Corrosion

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In recent years, interest in Mo‐based alloys has increased significantly due to their promising high‐temperature behavior and their possible uses for industrial high‐temperature applications such as within turbines. An important corrosion mechanism in turbines is the sulfate salt‐induced attack of the structural materials, known as hot corrosion. Therefore, the Type I and II hot corrosion behavior of Mo–9.0Si–8.0B was investigated at 700°C and 900°C for 24 and 100 h. The Mo‐based alloy showed severe degradation, but not by sulfates. Thus, the underlying hot corrosion mechanism through molybdate fluxing, which is accompanied by Mo oxide evaporation, is discussed in detail. At the higher temperature, the MoO3 evaporation becomes predominant, leaving behind a Si‐glass with molybdate inclusions.

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