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POSPÍŠILOVÁ, S. KREJČÍ, J. PODRÁBSKÝ, T. ČELKO, L.
Originální název
Protective layers on Ni-based superalloys formed by co-deposition of Al and Si
Typ
abstrakt
Jazyk
angličtina
Originální abstrakt
Co-deposition of Al and Si on nickel-based superalloys (Inconel 713LC and Inconel 738LC) is being studied by means of light and scanning electron microscope equipped for EDS microanalysis. After "painting" the substrate with colloidal fluid containing Al and Si particles, diffusion annealing follows (the method was developed in former Soviet Union for military aircraft engines). Surface layer affected by diffusion of Al and Si splits into two sub-layers, Al rich and Si rich. Final structure is formed (from surface to the substrate) by oxide film (Al2O3 + Cr2O3), Al rich region, Si rich region and substrate deficient in Al and therefore free of Ni3Al particles. To obtain composition of surface proper and details in immediately adjacent material, EDS analysis using decreasing acceleration voltage (AV) in SEM, was employed. This measurements made it possible to, through extrapolation of measured curves to 0 kV AV, obtain composition of surface film (oxides) and composition changes in material closest to the surface.
Klíčová slova
Al-Si layers, Inconel, EDS
Autoři
POSPÍŠILOVÁ, S.; KREJČÍ, J.; PODRÁBSKÝ, T.; ČELKO, L.
Rok RIV
2006
Vydáno
1. 6. 2006
Nakladatel
RMS Royal Microscopical Society
Místo
RMS Royal Microscopical Society, 37/38 St.Clements, Oxford OX4 IAJ, UK
Strany od
47
Strany do
Strany počet
1
BibTex
@misc{BUT61018, author="Simona {Hutařová} and Jan {Krejčí} and Tomáš {Podrábský} and Ladislav {Čelko}", title="Protective layers on Ni-based superalloys formed by co-deposition of Al and Si", booktitle="Microscience 2006", year="2006", series="2006", edition="1", pages="47--47", publisher="RMS Royal Microscopical Society", address="RMS Royal Microscopical Society, 37/38 St.Clements, Oxford OX4 IAJ, UK", note="abstract" }