SciELO - Scientific Electronic Library Online

 
vol.32 número3Supermartensitic 13 %Cr large diameter seamless pipes: Mechanical corrosion and weldability propertiesAdvanced high chromium ferritic steels for boiler components operating at high temperature índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Articulo

Indicadores

  • No hay articulos citadosCitado por SciELO

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Bookmark


Latin American applied research

versión impresa ISSN 0327-0793

Resumen

MAPELLI, C.; VEDANI, M.  y  ZAMBON, A.. On microstructure development and inclusion generation in a continuously cast resulphurised steel. Lat. Am. appl. res. [online]. 2002, vol.32, n.3, pp. 221-227. ISSN 0327-0793.

An experimental study on solidification structure development and on endogenous inclusion precipitation in a continuously cast resulphurised steel is presented. Results were obtained by investigating two heats of a free cutting C-Mn steel cast in billets with a diameter of 145 mm. The as cast structure was evaluated by macro- and microscopic analyses. Primary and secondary dendrite arm spacing measurement allowed to estimate the solidification time experienced by the steel in different region of the billet section. Modification of the pearlite vs. ferrite fraction was also studied as a function of distance from billet surface and thus with reference to solidification conditions. Endogenous inclusions of the type MnS and CaO-Al2O3 were analysed. Their formation was discussed as a function of the composition of the heats. Also for the inclusions resulting after steel solidification, the data suggested that the effects of local solidification condition and of segregation played a role of primary importance.

Palabras llave : continuous casting; resulphurised steels; dendrite arm spacing; endogenous inclusions.

        · texto en Inglés     · pdf en Inglés