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High temperature compression creep of aluminium nitride after immersion in molten stainless steel

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Abstract

The effect of immersion in molten steel on subsequent creep behaviour has been investigated in two AlN ceramics. Steady-state creep was not significantly affected but an enhanced initial creep rate was observed, especially when the surface layer had not been removed after immersion. In immersed samples, SEM revealed some open porosity and microcracks near the surface and particles containing steel constituents were found by TEM deep inside samples, in grain-boundary secondary phases.

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MASSON, I., FEIEREISEN, J.P., MICHEL, J.P. et al. High temperature compression creep of aluminium nitride after immersion in molten stainless steel. Journal of Materials Science 32, 2215–2218 (1997). https://doi.org/10.1023/A:1018555712812

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