Atomic-scale study of second-phase formation involving large coherency strains in Fe-20 at.% Mo

Dieter Isheim, Olof C. Hellman, David N. Seidman, Frédéric Danoix, Didier Blavette

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

In this study, the three-dimensional arrangement of nm-scale precipitates in an Fe-20 at.%Mo alloy, aged at 500°C for 20 h, was resolved in three dimensions by 3D-atom-probe microscopy (3D-APM). It was found that the precipitates have an Mo concentration of about 90 at.% Mo, are 2-4 nm in size, and are arranged in chain-like structures along the 〈100〉-type directions of the bcc Fe-rich matrix.

Original languageEnglish (US)
Pages (from-to)645-651
Number of pages7
JournalScripta Materialia
Volume42
Issue number7
DOIs
StatePublished - Mar 17 2000

Funding

DI thanks the members of the Groupe de Métallurgie Physique, Rouen, France, for their warm hospitality and assistance during his stay. Mr. J. Vandenbroucke is thanked for his contribution to the development of data evaluation software. The provision of the piston-and-anvil quencher of the Lehrstuhl für Physik I, Universität Augsburg, Germany, by Professor K. Samwer is gratefully acknowledged. This research was supported by the National Science Foundation, Division of Materials Research (Dr. B. MacDonald, grant officer), the Deutsche Forschungsgemeinschaft, and the Alexander von Humboldt Foundation through the Max Planck research prize of DNS.

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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