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| 001 | 851206 | ||
| 005 | 20240709094352.0 | ||
| 024 | 7 | _ | |a 10.1080/09603409.2017.1389422 |2 doi |
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| 100 | 1 | _ | |a Huang, T. |0 P:(DE-Juel1)168207 |b 0 |e Corresponding author |u fzj |
| 245 | _ | _ | |a Effect of test atmosphere composition on high-temperature oxidation behaviour of CoNiCrAlY coatings produced from conventional and ODS powders |
| 260 | _ | _ | |a Amsterdam [u.a.] |c 2018 |b Elsevier Science |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a The oxidation behaviour of free-standing CoNiCrAlY coatings produced by low-pressure plasma spraying using conventional powder and oxide dispersion strengthened (ODS) powder containing 2 wt. % Al-oxide dispersion was investigated. Thermogravimetric experiments at 1100 °C in Ar-20%O2 and Ar-4%H2-2%H2O showed lower oxidation rates of the ODS than the conventional coating. In the latter material the scale growth was enhanced by extensive Y-incorporation of Y/Al-mixed oxide precipitates in the scale and apparently by Y-segregation to oxide grain boundaries. In the ODS coating the alumina dispersion bonded Y in the form of Y-aluminate thereby effectively suppressing scale ‘overdoping’. SEM/EBSD studies of all alumina scales revealed a columnar grain structure with the lateral grain size increasing approximately linearly with depth from the oxide/gas interface. For both coatings the alumina scale growth was slower in Ar–H2–H2O than in Ar–O2. The result is believed to be related to a lower oxygen potential gradient and to slower grain boundary diffusion in the scale forming in H2/H2O containing gas. |
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| 700 | 1 | _ | |a Vassen, R. |0 P:(DE-Juel1)129670 |b 3 |u fzj |
| 700 | 1 | _ | |a Naumenko, D. |0 P:(DE-Juel1)129766 |b 4 |u fzj |
| 700 | 1 | _ | |a Quadakkers, W. J. |0 P:(DE-Juel1)129782 |b 5 |u fzj |
| 773 | _ | _ | |a 10.1080/09603409.2017.1389422 |g Vol. 35, no. 1-3, p. 97 - 107 |0 PERI:(DE-600)2035150-1 |n 1-3 |p 97 - 107 |t Materials at high temperatures |v 35 |y 2018 |x 1878-6413 |
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