3D nanoscale elemental mapping of precipitates in steel: Evaluation of analytical electron tomography and comparison to atom probe tomography

Cornelia Trummer, Francisca Mendez Martin, Gerald Kothleitner*, Georg Haberfehlner*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


To identify different types of precipitates and their composition, analytical electron tomography analysis on a needle-shaped sample was performed. Three-dimensional chemical maps from each element in a high alloyed steel are acquired and the resulting elemental maps are jointly reconstructed. Since analytical electron tomography data suffers from noise, total generalized variation regularization is used to improve the reconstruction quality compared to conventional reconstruction techniques. We analyse the influence of regularization parameters on these reconstructions in terms of elemental quantification, and compare these results to atom probe tomography measurements done on another sample of the same material.

Original languageEnglish
Article number103233
Publication statusPublished - May 2022


  • Atom probe tomography
  • Electron tomography
  • Energy-dispersive X-ray spectroscopy
  • Steel

ASJC Scopus subject areas

  • General Materials Science
  • Physics and Astronomy(all)
  • Materials Science(all)
  • Structural Biology
  • Cell Biology

Fields of Expertise

  • Advanced Materials Science

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)

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