Abstract
Cover Photo: Sheet Cast Disc: light‐weight brake disc in composite design; its friction ring is still made of cast iron but the disc pot is an insert of a high‐strength steel sheet. This steel design ensures not only reduction in weight but also reduction in thermal distortion, which results in improved driving comfort and fuel consumption. 2009 Steel Innovation Prize by the German Steel Industry Association. Copy by courtesy of Sheet Cast Technologies GmbH, München, and Stahl‐Informations‐Zentrum, Düsseldorf.