Thermodynamic modeling and experimental validation of the Fe-Al-Ni-Cr-Mo alloy system

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

22 Scopus Citations
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Author(s)

  • Z. K. Teng
  • F. Zhang
  • M. K. Miller
  • S. Huang
  • Y. T. Chou
  • R. H. Tien
  • Y. A. Chang
  • P. K. Liaw

Detail(s)

Original languageEnglish
Pages (from-to)36-40
Journal / PublicationMaterials Letters
Volume71
Publication statusPublished - 15 Mar 2012

Abstract

NiAl-type precipitate-strengthened ferritic steels have been known as potential materials for the steam turbine applications. In this study, thermodynamic descriptions of the B2-NiAl type nano-scaled precipitates and body-centered-cubic (BCC) Fe matrix phase for four alloys based on the Fe-Al-Ni-Cr-Mo system were developed as a function of the alloy composition at the aging temperature. The calculated phase structure, composition, and volume fraction were validated by the experimental investigations using synchrotron X-ray diffraction and atom probe tomography. With the ability to accurately predict the key microstructural features related to the mechanical properties in a given alloy system, the established thermodynamic model in the current study may significantly accelerate the alloy design process of the NiAl-strengthened ferritic steels. © 2011 Elsevier B.V. All rights reserved.

Research Area(s)

  • Atom probe, Ferrites, Microstructure, Nanosize, Particles, Simulation and modeling

Citation Format(s)

Thermodynamic modeling and experimental validation of the Fe-Al-Ni-Cr-Mo alloy system. / Teng, Z. K.; Zhang, F.; Miller, M. K.; Liu, C. T.; Huang, S.; Chou, Y. T.; Tien, R. H.; Chang, Y. A.; Liaw, P. K.

In: Materials Letters, Vol. 71, 15.03.2012, p. 36-40.

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