Přístupnostní navigace
E-application
Search Search Close
Publication detail
POSPÍŠILOVÁ, S. KREJČÍ, J. PODRÁBSKÝ, T. ČELKO, L.
Original Title
Protective layers on Ni-based superalloys formed by co-deposition of Al and Si
Type
abstract
Language
English
Original Abstract
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.
Keywords
Al-Si layers, Inconel, EDS
Authors
POSPÍŠILOVÁ, S.; KREJČÍ, J.; PODRÁBSKÝ, T.; ČELKO, L.
RIV year
2006
Released
1. 6. 2006
Publisher
RMS Royal Microscopical Society
Location
RMS Royal Microscopical Society, 37/38 St.Clements, Oxford OX4 IAJ, UK
Pages from
47
Pages to
Pages count
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" }