Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/992
Title: Microstructural characterization of bainitic steel submitted to torsion testing and interrupted accelerated cooling.
Authors: Cota, André Barros
Santos, Dagoberto Brandão
Issue Date: 2000
Citation: COTA, A. B.; SANTOS, D. B. Microstructural characterization of bainitic steel submitted to torsion testing and interrupted accelerated cooling. Materials Characterization, v. 44, n.3, p.291–299, mar. 2000. Disponível em: <http://144.206.159.178/ft/714/11857/240507.pdf>. Acesso em: 05 jul. 2012.
Abstract: HSLA low-carbon bainitic steel containing B was submitted to torsion tests to simulate controlled rolling, followed by interrupted accelerated cooling. Microstructural characteristics and the mechanisms for the refinement of structure were evaluated using light microscopy, scanning electron microscopy, transmission electron microscopy, and Vickers hardness testing. The final microstructure was found to contain complex mixture of granular bainite, small islands of MA constituent, bainitic ferrite, and polygonal ferrite. Increasing the cooling rate or decreasing the finish cooling temperature resulted in a decrease in the volume fraction and average size of the MA islands and the polygonal ferrite. A finish cooling temperature of 400 8 C produced a microstructure consisting of fine laths of bainitic ferrite with an interlath MA constituent. A quantitative relationship between the accelerated cooling variables and the ferrite grain size was developed.
URI: http://www.repositorio.ufop.br/handle/123456789/992
ISSN: 10445803
metadata.dc.rights.license: O Periódico Materials Characterization concede permissão para depósito do artigo no Repositório Institucional da UFOP. Número da licença: 3345930428979.
Appears in Collections:DEFIS - Artigos publicados em periódicos

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