Effects of Al on the microstructure and ductility of NiAl-strengthened ferritic steels at room temperature

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

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Author(s)

  • Z. K. Teng
  • C. T. Liu
  • G. Ghosh
  • P. K. Liaw
  • M. E. Fine

Detail(s)

Original languageEnglish
Pages (from-to)1437-1443
Journal / PublicationIntermetallics
Volume18
Issue number8
Publication statusPublished - Aug 2010
Externally publishedYes

Abstract

One of the major problems for the development of ferritic steels strengthened by NiAl-type (B2) precipitates is their poor ductility at room temperature. In conjunction with the computational alloy design, selected experiments are performed to investigate the effect of Al content on the ductility of prototype Fe-Ni-Cr-Al alloys. The microstructure and composition of the matrix (α-Fe type) and precipitate phases are characterized by transmission electron microscopy (TEM) and analytical electron microscopy (AEM). Three-point-bending experiments show that alloys containing more than 5 mass% Al exhibit poor ductility (

Research Area(s)

  • A. Nickel aluminides, based on NiAl, B. Alloy design, B. Brittleness and ductility, F. Electron microscopy, transmission

Citation Format(s)

Effects of Al on the microstructure and ductility of NiAl-strengthened ferritic steels at room temperature. / Teng, Z. K.; Liu, C. T.; Ghosh, G.; Liaw, P. K.; Fine, M. E.

In: Intermetallics, Vol. 18, No. 8, 08.2010, p. 1437-1443.

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