Resumo

RODRIGUEZ-SUAREZ, Ariana; FERNANDEZ-COLUMBIE, Tomás  e  RODRIGUEZ-GONZALEZ, Isnel. Microstructure and solidification of manganese steel obtained by casting process. Min. Geol. [online]. 2018, vol.34, n.4, pp.498-506. ISSN 1993-8012.

The solidification performance of a manganese steel (SAE 1551) obtained by casting was studied, by using the finite elements method (FEM) for the simulation; a pouring temperature was considered in a range from 1 445 to 1 550 °C. We took into account the molding and section of the piece, with 2 and 6 hours of solidification. It was possible to establish that the sprue runner is where solidification occurs last, which allows obtaining pieces with a minimum defects. The microstructural characterization of the samples showed a composition mainly of dendritic austenite, martensite and austenite. Under these conditions, this process ensures obtaining pieces with a small amount of defects.

Palavras-chave : solidification; microstructure; casting; mold; manganese; steel SAE 1551.

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