Deformation phenomena accompanying internal precipitation in solids

A. A. Kodentsov, M. J.H. Van Dal, C. Cserháti, L. Daróczi, F. J.J. Van Loo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A volume increase associated with the internal nitriding of Ni-5 at.% Cr alloy at relatively low homologous temperatures and high nitrogen fugacities results in a stress gradient between the alloy surface and the precipitation front. Stress relief occurred mainly by transport of nickel (solvent) to the stress-free metal surface mediated by pipe diffusion-controlled creep. This mechanism is prevailing because of a high dislocation density developing within the parent Ni-matrix upon the precipitation of semi-coherent nitride particles. The CrN-precipitates was found to be topotactically oriented with respect to the matrix.

Original languageEnglish
Pages (from-to)73-76
Number of pages4
JournalDefect and Diffusion Forum
Volume216-217
DOIs
Publication statusPublished - 2003

Keywords

  • Creep
  • Internal precipitation
  • Microstructure

ASJC Scopus subject areas

  • Radiation
  • Materials Science(all)
  • Condensed Matter Physics

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