High temperature oxidation of Ni-based superalloy 247 produced by electron beam powder bed fusion additive manufacturing

Hariharan K, Landes M, Ramsperger M, Luengas O, Yu T, Spiecker E, Zenk C, Wang Y, Virtanen S (2025)

Publication Type: Journal article

Publication year: 2025

Journal

Corrosion Science Elsevier

Book Volume: 257

Article Number: 113301

DOI: 10.1016/j.corsci.2025.113301

Abstract

This study investigates high temperature oxidation of Ni-base superalloy 247 processed by electron beam powder bed fusion (PBF-EB) compared with a conventionally cast (CC) counterpart. In terms of mass-gain during isothermal thermogravimetry at 1100 °C, the CC alloy outperformed the PBF-EB alloy. However, the PBF-EB alloy suffers from deeper internal oxidation due to its fine grain structure while shortening the transient oxidation stage. On the other hand, the CC alloy forms a non-homogeneous scale due to inhomogeneous distribution of bulky carbides and takes longer time to transition towards a steady-stage oxidation. The findings are analyzed and rationalized in the context of prior literature and thermodynamic-kinetic modeling.

Authors with CRIS profile

Karthikeyan Hariharan Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik) (LKO) Michael Landes Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Erdmann Spiecker Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Christopher Zenk Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) (WTM) Sannakaisa Virtanen Professur für Werkstoffwissenschaften (Korrosion und Oberflächentechnik)

Involved external institutions

Ohio State University US United States (USA) (US)

How to cite

APA:

Hariharan, K., Landes, M., Ramsperger, M., Luengas, O., Yu, T., Spiecker, E.,... Virtanen, S. (2025). High temperature oxidation of Ni-based superalloy 247 produced by electron beam powder bed fusion additive manufacturing. Corrosion Science, 257. https://doi.org/10.1016/j.corsci.2025.113301

MLA:

Hariharan, Karthikeyan, et al. "High temperature oxidation of Ni-based superalloy 247 produced by electron beam powder bed fusion additive manufacturing." Corrosion Science 257 (2025).

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