Metallurgical Transactions A

, Volume 23, Issue 11, pp 3141–3149 | Cite as

An Assessment of the Al- Fe- N System

  • Mats Hillert
  • Stefan Jonsson
Physical Chemistry
Received:

Abstract

The thermodynamic properties of the Al-Fe-N system are assessed, taking various types of information into account. For solid AIN, a description very similar to that given by JANAF is found to yield reasonable predictions for the solubility of A1N in face-centered cubic (fcc) Fe and in liquid Fe. An ionic two-sublattice model is applied to the liquid phase, containing two N species, N-3 and N0 The melting point of A1N is taken as 3068 K, and a required gas pressure of 9.75 bar is predicted. A sublimation point of 2690 K at 1 bar is also predicted. A plot of the liquidus surfaces in the Fe-rich end of the Al-Fe-N system is presented.

Keywords

Metallurgical Transaction Solubility Curve Sublimation Point Potential Phase Diagram Calculated Site Fraction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© The Minerals, Metals and Materials Society, and ASM International 1992

Authors and Affiliations

  • Mats Hillert
    • 1
  • Stefan Jonsson
    • 1
  1. 1.Division of Physical MetallurgyRoyal Institute of TechnologyStockholmSweden

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