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Article Dans Une Revue Metals Année : 2020

Titanium Nitride (TiN) Germination and Growth during Vacuum Arc Remelting of a Maraging Steel

Vincent Descotes
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Thibault Quatravaux
Jean-Pierre Bellot
Sylvain Witzke
  • Fonction : Auteur
  • PersonId : 1087211
Alain Jardy

Résumé

During the processing of maraging steels, Titanium easily combines with Nitrogen to form nitride inclusions, known to be deleterious for fatigue properties of the alloy. According to thermodynamic calculations, the precipitation occurs during solidification of the vacuum arc remelted (VAR) ingot. A coupled model of titanium nitride (TiN) inclusion precipitation and vacuum remelting has been setup to study the inclusion cleanliness of the ingot. The nitrogen content, nuclei numeral density and solidification time appear as the key factors which control the inclusion size.

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Matériaux
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Dates et versions

hal-03093790 , version 1 (04-01-2021)

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Citer

Vincent Descotes, Thibault Quatravaux, Jean-Pierre Bellot, Sylvain Witzke, Alain Jardy. Titanium Nitride (TiN) Germination and Growth during Vacuum Arc Remelting of a Maraging Steel. Metals, 2020, 10 (4), pp.541. ⟨10.3390/met10040541⟩. ⟨hal-03093790⟩
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