Comparison of high temperature oxidation of nanocrystalline FeCr alloy consolidated by spark plasma sintering and hot pressing

The oxidation kinetics and microstructure characteristics of oxide scales thermally grown on the surface of developed FeCr alloy were investigated at 900 °C. The influence of difference sintering technique, i.e. spark plasma sintering and hot pressing, to improve nanostructured alloy performance was...

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Bibliographic Details
Published in:World journal of engineering 2014-06, Vol.11 (2), p.123-130
Main Authors: Sebayang, D., Khaerudini, Deni, Othman, M., Hasan, S., Mahzan, S., Fredrick, D., Sujitno, T., Untoro, P.
Format: Article
Language:English
Subjects:
Alloy development
High temperature
Hot pressing
Implantation
Intermetallic compounds
Nanostructure
Oxidation
Oxidation rate
Oxides
Reaction kinetics
Scale (corrosion)
Sintering
Spark plasma sintering
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Summary:The oxidation kinetics and microstructure characteristics of oxide scales thermally grown on the surface of developed FeCr alloy were investigated at 900 °C. The influence of difference sintering technique, i.e. spark plasma sintering and hot pressing, to improve nanostructured alloy performance was studied. The La-implantation was also considered in this study. It was found that the SPS sintered sample showed better performance than the HP sintered sample. Moreover, it also found that a combining of La-implantation and nanostructured alloy was most beneficial. While nanostructured alloy reduced the oxidation rate, the La-implantation increased the Cr 2 O 3 scale conductivity.
ISSN:1708-5284
DOI:10.1260/1708-5284.11.2.123