Study of the nature of non-metallic inclusions in samples of aluminum and silicon killed low carbon steels, collected in the refining treatment and continuous casting stages
Título del documento: Study of the nature of non-metallic inclusions in samples of aluminum and silicon killed low carbon steels, collected in the refining treatment and continuous casting stages
Revista: Materials research
Base de datos: PERIÓDICA
Número de sistema: 000312749
ISSN: 1516-1439
Autores: 1
2
Instituciones: 1Centro Federal de Educacao Tecnologica, Belo Horizonte, Minas Gerais. Brasil
2Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica, Campinas, Sao Paulo. Brasil
Año:
Periodo: Oct-Dic
Volumen: 7
Número: 4
Paginación: 517-521
País: Brasil
Idioma: Inglés
Tipo de documento: Nota breve o noticia
Enfoque: Experimental
Resumen en inglés The amount, distribution, size and chemical composition of non-metallic inclusions have a direct influence on steel properties. By controlling size and chemical composition of these inclusions, it is possible to get a product with good quality. The identification of the nature and the control of inclusion formation are very important for steel cleanness. The behavior of these inclusions is predictable, in some extent, by the determination of the chemical composition of non-metallic phases that form such inclusions. With the objective of studying the chemical composition, the size and the distribution of such inclusions, samples of aluminum and silicon killed low carbon steels were collected in a national steel industry in the secondary refining and continuous casting stages. These samples were analyzed in the scanning electron microscope (SEM) coupled to an energy dispersive analysis system (EDS). From the results, it was possible to evaluate the nature of inclusions and to analyze the effectiveness of the refining process in the reduction of the number and area fraction of the inclusions. It was also possible to verify that the inclusions that remained after treatment, are less damage both to the steel properties as to the continuous casting process (clogging of the submerged valve)
Disciplinas: Ingeniería,
Química
Palabras clave: Ingeniería mecánica,
Ingeniería metalúrgica,
Química industrial,
Acero,
Tratamiento químico,
Composición química,
Propiedades mecánicas
Keyword: Engineering,
Chemistry,
Mechanical engineering,
Metallurgical engineering,
Industrial chemistry,
Steel,
Chemical treatment,
Chemical composition,
Mechanical properties
Texto completo: Texto completo (Ver HTML)