Avoiding or Promoting Graphite in Carbon-Rich Chromium-Containing CoNiFe Cast Alloys-Part 1: Preliminary Thermodynamic Exploration - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue ISRN Thermodynamics Année : 2012

Avoiding or Promoting Graphite in Carbon-Rich Chromium-Containing CoNiFe Cast Alloys-Part 1: Preliminary Thermodynamic Exploration

Patrice Berthod

Résumé

The thermodynamic equilibria of alloys, based on Co, Ni, and Fe rich in chromium and carbon over a [500; 1500 • C] range of temperature, were determined using thermodynamic calculations. The probable types of microstructures (hypo-to hypereutectic) as well as the phase present at high temperature (matrix network, types of carbides, presence or not of graphite) were predicted. From these results new chromium contents to either avoid or promote the presence of graphite were chosen and the as-cast microstructures of the corresponding real alloys were anticipated, before their elaboration and microstructure characterization in the second part of this work.

Domaines

Chimie Matériaux
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Dates et versions

hal-02334384 , version 1 (26-10-2019)

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Patrice Berthod. Avoiding or Promoting Graphite in Carbon-Rich Chromium-Containing CoNiFe Cast Alloys-Part 1: Preliminary Thermodynamic Exploration. ISRN Thermodynamics, 2012, ⟨10.5402/2012/308795⟩. ⟨hal-02334384⟩
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