DANIS, Yann; ARVIEU, Corine; LACOSTE, Eric; QUENISSET, Jean-Michel

doi:10.1088/0965-0393/18/8/085003

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ARVIEU, Corine
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire Génie Mécanique et Matériaux de Bordeaux [LGM2B]

LACOSTE, Eric
Laboratoire de Génie Mécanique et Matériaux de Bordeaux [LGM2B]

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Modelling and Simulation in Materials Science and Engineering. 2010, vol. 18, n° 8, p. 085003 (15 p.)

IOP Publishing

Resumen en inglés

After experimental identification of the main factors influencing Inconel 738LC superalloy microstructures, a semi-analytical modeling of precipitate dissolution during thermal cycle has been proposed. It was based on an isokinetic model of phase transformation adapted to the presence of high-precipitate density as observed in γ' precipitate hardened IN738LC. Some data required as input for the semi-analytical modeling could be determined by an inverse method applied to isothermal treatments. Finally the semi-analytical modeling was validated through non-isothermal treatments and used to predict the occurrence of hot cracking depending on welding conditions.< Leer menos

Palabras clave en inglés

Solid-phase precipitation

Solid–solid transitions

Joining

Welding

Phase equilibria

Inconel 738LC

Modellisation

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Control of Inconel 738LC superalloy microstructure with the aid of a precipitate dissolution semi-analytical modeling

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