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Microstructural and Mechanical Characterization of a Nanostructured Bainitic Cast Steel

AuthorsSantacruz-Londoño, Andrés Felipe; Ríos-Diez, Oscar; Jiménez, José Antonio; García Mateo, Carlos ; Aristizábal-Sierra, Ricardo
Cast steels
Austenite stability
Bainitic transformation
Issue Date2020
PublisherMultidisciplinary Digital Publishing Institute
CitationMetals 10(5): 612 (2020)
AbstractNanoscale bainite is a remarkable microstructure that exhibits a very promising combination of high strength with good ductility and toughness. The development of these types of microstructures has been focused on wrought materials, and very little information is available for steel castings. In this work, a specially designed cast steel with 0.76 wt % C was fabricated, and the heat treatment cycles to develop bainitic nanostructures were determined by studying the kinetics of the bainitic transformation using high-resolution dilatometry. The effects of isothermal holding temperature and time on the final microstructure and mechanical properties were thoroughly characterized in order to evaluate a future industrial implementation of the process in an effort to contribute to enhance and widen the potential applications for cast steels.
Description© 2020 by the authors.
Publisher version (URL)https://doi.org/10.3390/met10050612
Appears in Collections:(CENIM) Artículos
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