Thermodynamic Assessment of Cr-Rare Earth Systems

Abstract

Early rare earth elements are added to refractory metal based alloys to absorb residual oxygen in the alloy to enhance ductility and form dispersion strengthening oxides to increase creep resistance. In this work, three binary systems, Ce-Cr, Cr-La and Cr-Y, were thermodynamically assessed based on available experimental data in the literature using the CALPHAD method. Self-consistent and reasonable thermodynamic descriptions for all three systems were obtained.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2009
Accession Number
ADA537944

Entities

People

  • Michael C Gao
  • Omer N. Dogan
  • Paul King
  • Wren Chan

Organizations

  • Carnegie Mellon University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alloys
  • Chromium
  • Dispersions
  • Elements
  • Experimental Data
  • High Temperature
  • Literature
  • Materials
  • Materials Science
  • Melting Point
  • Metals
  • Phase Diagrams
  • Rare Earth Elements
  • Refractory Metals
  • Resistance
  • Transition Temperature
  • Turbines

Fields of Study

  • Materials science

Readers

  • Computational Modeling and Simulation
  • Materials Science and Engineering.
  • Powder metallurgy of Titanium alloys.