The formation of ε-Fe3-2N phase in a nanocrystalline Fe

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • W. P. Tong
  • N. R. Tao
  • Z. B. Wang
  • H. W. Zhang
  • K. Lu

Detail(s)

Original languageEnglish
Pages (from-to)647-650
Journal / PublicationScripta Materialia
Volume50
Issue number5
Publication statusPublished - Mar 2004
Externally publishedYes

Abstract

The formation of ε-Fe3-2N phase in a nc pure Fe sample was investigated. The nc Fe sample was prepared by means of the surface mechanical attrition treatment (SMAT) technique. Formation of εFe3-2N phase in the nc α-Fe was observed when the nitrogen potential was below the critical value for the coarse-grained Fe. The results show that the enhanced nitriding kinetics of nc α-Fe in the SMAT sample can be attributed to the much increased heterogeneous nucleation rate at numerous grain boundaries in the nanocrystalline α-Fe.

Research Area(s)

  • Iron, Nanocrystalline materials, Nitriding, Surface mechanical attrition treatment (SMAT)

Citation Format(s)

The formation of ε-Fe3-2N phase in a nanocrystalline Fe. / Tong, W. P.; Tao, N. R.; Wang, Z. B. et al.
In: Scripta Materialia, Vol. 50, No. 5, 03.2004, p. 647-650.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review