Refractory Hard Alloys Elaborated by Casting of Ternary (Co, Ni Fe)-30Cr-2.5 to 5 wt% C Compositions - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Materials Science and Chemical Engineering Année : 2015

Refractory Hard Alloys Elaborated by Casting of Ternary (Co, Ni Fe)-30Cr-2.5 to 5 wt% C Compositions

Patrice Berthod
Moussa Ba
  • Fonction : Auteur
Ahmed Dia
  • Fonction : Auteur
Lionel Aranda
Elodie Conrath
  • Fonction : Auteur
  • PersonId : 777429
  • IdRef : 195248384

Résumé

Three series of ternary alloys of the {M-30Cr-xC}-type with M = Co, Ni or Fe and x ranging from 2.5 to 5 wt% were elaborated by casting. Their microstructure characterizations by XRD and SEM show that very high volume fractions in chromium carbides (even more than 50%) may be obtained in a metallic matrix by this way. However graphite may also appear in very low quantities in the carbon-richest alloys. The hardness increases with the carbon content (up to 1000 Hv30kg) but it may be a little lowered when graphite is also present. The results show that very hard alloys may be simply obtained by casting of rather cheap elements.
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Dates et versions

hal-02467482 , version 1 (05-02-2020)

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Patrice Berthod, Ophélie Hestin, Elise Souaillat, Moussa Ba, Ahmed Dia, et al.. Refractory Hard Alloys Elaborated by Casting of Ternary (Co, Ni Fe)-30Cr-2.5 to 5 wt% C Compositions. Journal of Materials Science and Chemical Engineering, 2015, 3, pp.127 - 135. ⟨10.4236/msce.2015.37017⟩. ⟨hal-02467482⟩
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