High-strength steels hardened mainly by nanoscale NiAl precipitates

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

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Author(s)

  • Z. B. Jiao
  • J. H. Luan
  • Z. W. Zhang
  • M. K. Miller
  • C. T. Liu

Detail(s)

Original languageEnglish
Pages (from-to)45-48
Journal / PublicationScripta Materialia
Volume87
Online published26 May 2014
Publication statusPublished - 15 Sep 2014

Abstract

NiAl-strengthened high-strength steels usually have high Ni and Al contents in order to form hardening particles. Here, several new low-Ni steels are reported, which achieve a combination of relatively low cost, high strength and good ductility mainly through the precipitation of high number densities of nanoscale NiAl precipitates as characterized by atom probe tomography. The precipitation parameters are tuned by optimizing both alloy compositions and heat-treatment parameters. The strengthening effects of nanoscale NiAl and Mo/W-rich carbides are quantitatively analyzed and assessed.

Research Area(s)

  • Atom probe tomography, Ferritic steel, Mechanical property, NiAl precipitate, Precipitation

Citation Format(s)

High-strength steels hardened mainly by nanoscale NiAl precipitates. / Jiao, Z. B.; Luan, J. H.; Zhang, Z. W.; Miller, M. K.; Liu, C. T.

In: Scripta Materialia, Vol. 87, 15.09.2014, p. 45-48.

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