Abstract
Dendrite bending angle measurements were conducted along two different directions on four steel slab samples collected from a conventional caster. The primary dendrites growing at the slab surface showed a transition in their growth direction as the distance from the surface increased. Numerical fluid flow simulation showed changes in the flow directions that might have caused the change in the growth direction. The bending angle measurements were also correlated with the casting process parameters. Thereafter, a multiscale approach was adopted to predict the dendrite deflection angles by correlating the macro-scale flow profile with the micro-scale bending angle formulation and subsequently corroborated with the industrial scale measurements.
Highlights
Sustainability within the highly competitive market producing thinner sections of high-quality grades requires a balance between product quality and production volume for an industrial manufacturing process
Based on an already existing fluid flow model,[26] the fluid flow profile within the continuous casting mould corresponding to the casting process parameters of the collected slab samples was extracted and used as an input for the subsequent micro-macro-coupling
An industrial process was coupled with an advanced computational technique through a multiscale approach
Summary
Sustainability within the highly competitive market producing thinner sections of high-quality grades requires a balance between product quality and production volume for an industrial manufacturing process. In today’s world of high-quality steels produced via continuous casting process[1] and cast to near net shape, the material science community is constantly engaged in uncovering the details of an intricate relationship of the solidification structure[2] (distribution and morphology of different phases) on process parameters like fluid flow. Control of cast micro-structure could eliminate subsequent thermo-mechanical processing steps. Stringent product quality requirements demand detailed information on this structure that influences the evolving composition profile (micro-scale, 10À6 to 10À5 m) mechanism and how it relates to the final chemistry across the full dimension (macro-scale, 10À3 to 1 m) of Manuscript submitted September 8, 2020; April 25, 2021.
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