DESENVOLVIMENTO DE METODOLOGIA PARA AVALIAÇÃO DE AÇOS ESFEROIDIZADOS. PARTE 2: DETERMINAÇÃO DO GRAU DE ESFEROIDIZAÇÃO.

In this work, a simple methodology was developed for the quantitative evaluation of the microstructure of spheroidized steels. In the first part, the decarburization of these steels was analyzed and now, methodology for the determination of the spheroidization degree was developed, as the available industrial norms are restricted to the use of qualitative standards for determining the mean spheroidization degree. The SAE 1095 steel was studied in the spheroidized annealed condition. The parameter circularity was applied to scanning electron micrographs, enabling the quantification of the carbides distribution according to their spheroidization degree. [ABSTRACT FROM AUTHOR]