科研之友
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摘要
The nature and magnitude of stress in the scales formed on Pt-11Al-3Cr-2Ru (at.%) alloy oxidized in air at 1250 degrees C, for up to 500h, were determined. This is to establish their long-term viability during high-temperature applications. Residual stress in the scales was measured using luminescence piezospectroscopy and found to be compressive. It decreased gradually with increased oxidation time, before reaching a constant value. The compressive stress was also found to be lower than those of other Ni- and Fe-based superalloys. Thus, the current alloy has a promising potential for high-temperature applications.
- 出版日期2014-5
