Transferring Nanoscale Bainite Concept to Lower C Contents: A Perspective
AbstractThe major strengthening mechanisms in bainitic steels arise from the bainitic ferrite plate thickness rather than the length, which primarily determines the mean free slip distance. Both the strength of the austenite from where the bainite grows and the driving force of the transformation, are the two factors controlling the final scale of the bainitic microstructure. Usually, those two parameters can be tailored by means of selection of chemical composition and transformation temperature. However, there is also the possibility of introducing plastic deformation on austenite and prior to the bainitic transformation as a way to enhance both the austenite strength and the driving force for the transformation; the latter by introducing a mechanical component to the free energy change. This process, known as ausforming, has awoken a great deal of interest and it is the object of ongoing research with two clear aims. First, an acceleration of the sluggish bainitic transformation observed typically in high C steels (0.7–1 wt. %) transformed at relatively low temperatures. Second, to extend the concept of nanostructured bainite from those of high C steels to much lower C contents, 0.4–0.5 wt. %, keeping a wider range of applications in view. View Full-Text
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Garcia-Mateo, C.; Paul, G.; Somani, M.C.; Porter, D.A.; Bracke, L.; Latz, A.; Garcia De Andres, C.; Caballero, F.G. Transferring Nanoscale Bainite Concept to Lower C Contents: A Perspective. Metals 2017, 7, 159.
Garcia-Mateo C, Paul G, Somani MC, Porter DA, Bracke L, Latz A, Garcia De Andres C, Caballero FG. Transferring Nanoscale Bainite Concept to Lower C Contents: A Perspective. Metals. 2017; 7(5):159.Chicago/Turabian Style
Garcia-Mateo, Carlos; Paul, Georg; Somani, Mahesh C.; Porter, David A.; Bracke, Lieven; Latz, Andreas; Garcia De Andres, Carlos; Caballero, Francisca G. 2017. "Transferring Nanoscale Bainite Concept to Lower C Contents: A Perspective." Metals 7, no. 5: 159.