2134/37912
A. Taphouse
A.
Taphouse
H. Hay
H.
Hay
Bo Yuan
Bo
Yuan
Christopher Harvey
Christopher
Harvey
Simon Wang
Simon
Wang
Rachel C. Thomson
Rachel C.
Thomson
Gary W. Critchlow
Gary W.
Critchlow
On cooling rate dependent spallation behavior of α-alumina scale grown by oxidation
Loughborough University
2019
Alumina scale
Cooling rate
Pockets of energy concentration
Residual stress
Spallation
Engineering not elsewhere classified
2019-06-12 08:26:11
Conference contribution
https://repository.lboro.ac.uk/articles/conference_contribution/On_cooling_rate_dependent_spallation_behavior_of_-alumina_scale_grown_by_oxidation/9221486
It is hypothesized that dynamic and non-uniform plastic relaxation occurs in α-Al2O3 scale on Fe-Cr-Al substrate during cooling from high temperature, and furthermore, that the non-uniformity of plastic relaxation is related to
(1) the variation of residual stress with respect to cooling rate; and (2) the rate of
stress relaxation. Based on this hypothesis, a mechanical model is developed
which gives accurate predictions for the cooling dependent spallation behavior
of α-Al2O3 grown by oxidation.