W–Ni–Co ternary system thermodynamic description at intermediate temperatures - Archive ouverte HAL
Communication Dans Un Congrès Année : 2020

W–Ni–Co ternary system thermodynamic description at intermediate temperatures

Résumé

Tungsten heavy alloy (W–Ni–Co) samples of different compositions were prepared by powder metallurgy (solid liquid sintering), heat treated at 1000°C and subsequently analyzed. The isothermal section at 1000°C is more complex than expected since a new intermetallic phase appears to be stable (D0a structure - Cu3Ti prototype). Formation enthalpies associated with the new phase were obtained through ab initio calculations. Both data are currently used to develop a new CALPHAD modelization of the W-Ni-Co system

Domaines

Matériaux
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Dates et versions

hal-04752733 , version 1 (24-10-2024)

Identifiants

  • HAL Id : hal-04752733 , version 1

Citer

Nicolas Bouliez, Jean-Claude Crivello, Bruno Gardiola, Rodica Chiriac, Francois Toche, et al.. W–Ni–Co ternary system thermodynamic description at intermediate temperatures. EuroPM 2020, Oct 2020, Lisbonne, Portugal. ⟨hal-04752733⟩
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