Abstract
A brief summary is given of the desired microstructures in important classes of steel products. These are to a large extent susceptible to control and improvement by adjustment of the final processing conditions such as cooling rate and/or coiling temperature following rolling. The effect of different cooling patterns is discussed in relation to several mechanisms of microstructure formation, namely: matrix phases, grain size control, precipitation of microalloy compounds, cementite films, and retained austenite. Some examples from industrial production are included.
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