Quantitatively accounting for the effects of surface topography on the oxidation kinetics of additive manufactured Hastelloy X processed by electron beam melting

Matthew C. Kuner, Marie Romedenne, Patxi Fernandez-Zelaia, Sebastien Dryepondt

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

The effects of surface roughness on the high-temperature corrosion of nickel-based superalloy X produced through electron-beam melting (EBM) additive manufacturing were studied. Surface area of samples in the rough, as-fabricated condition was measured using a 2D cross-section image analysis technique and a 3D image analysis technique. To verify the accuracy of surface area measurements, oxidation testing of samples in the as-fabricated and polished conditions was performed; polished sample oxidation curves were then compared to the as-fabricated sample oxidation curves before and after being adjusted using obtained surface area measurements. It was found that the 2D technique accurately measured surface area and accounted for the overlapping features present on EBM sample surfaces, whereas the 3D technique did not. Further, it was also observed that oxidation kinetics were moderately faster on the alloy X samples in the as-fabricated condition than for the polished condition.

Original languageEnglish
Article number101431
JournalAdditive Manufacturing
Volume36
DOIs
StatePublished - Dec 2020

Funding

The authors are thankful for the technical support and collaboration of M. Stephens, V. Cox, T. Lowe, T.D.B. Jacobs, C. Stephens, P. Stack, and S. Uwanyuze. The authors would also like to thank R. Pillai, M.J. Lance, and B.A. Pint for reviewing the manuscript. This research was sponsored by: the U.S. Department of Energy, Fossil Energy Crosscutting Research Program and the Office of Energy Efficiency & Renewable Energy's Advanced Manufacturing Office; Solar Turbines Incorporated; and the U.S. Department of Energy, Office of Workforce Development for Teachers and Scientists through the Summer Undergraduate Laboratory Internship Program. The authors are thankful for the technical support and collaboration of M. Stephens, V. Cox, T. Lowe, T.D.B. Jacobs, C. Stephens, P. Stack, and S. Uwanyuze. The authors would also like to thank R. Pillai, M.J. Lance, and B.A. Pint for reviewing the manuscript. This research was sponsored by: the U.S. Department of Energy, Fossil Energy Crosscutting Research Program and the Office of Energy Efficiency & Renewable Energy's Advanced Manufacturing Office ; Solar Turbines Incorporated ; and the U.S. Department of Energy, Office of Workforce Development for Teachers and Scientists through the Summer Undergraduate Laboratory Internship Program .

Keywords

  • Corrosion
  • Electron beam melting
  • Oxidation
  • Roughness
  • Surface area

Fingerprint

Dive into the research topics of 'Quantitatively accounting for the effects of surface topography on the oxidation kinetics of additive manufactured Hastelloy X processed by electron beam melting'. Together they form a unique fingerprint.

Cite this