journal article·2017-10

External α-Al2O3 scale on Ni-base alloy 602 CA – Part II: Microstructural evolution

R. Pillai, A. Chyrkin, T. Galiullin, E. Wessel, D. Grüner, W.J. Quadakkers

Corrosion Science· Volume 127
Publisher page

Abstract

Abstract The growth of protective α -Al 2 O 3 scales on the NiCrAl-base alloy 602 CA at 1100 °C and 1200 °C was promoted by multi-step oxidation treatments. Different microstructural changes were observed during high temperature exposures in the pre-oxidised specimens as compared to the bare specimens. A coupled thermodynamic-kinetic model was employed to describe the influence of pre-oxidation on the microstructural evolution in the alloy. The model was able to correctly predict the mechanisms of the dissolution and re-precipitation of the carbides in the pre-oxidised and bare specimens.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: High-Temperature Coating Behaviors · High Temperature Alloys and Creep · Nuclear Materials and Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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