Berlin 2012 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 9: Topical Session Bulk Nanostrucured Materials II - Processing

MM 9.1: Topical Talk

Monday, March 26, 2012, 11:45–12:15, H 0107

Tailoring and grading materials properties by Accumulative Roll Bonding — •Heinz Werner Höppel and Mathias Göken — Dept. of Materials Science and Engineering, Institute I, University Erlangen-Nürnberg, 91058 Erlangen, Germany

Accumulative roll bonding (ARB) is a very promising and also prominent process to produce ultrafine-grained sheet materials in larger quantities. During the last decade, strong progress was made in processing technology combined with a much deeper understanding of the microstructural evolution during ARB-processing. Besides this well-known conventional route of ARB-processing, new concepts have been derived to produce multiphase, tailored or graded sheet materials with promising properties. By an intelligent ARB-processing 3D-architectured multiphase materials can be achieved aiming for locally tailored materials properties. It is shown, that the materials properties can be tailored locally by an adopted powder spraying process via the ARB process. Moreover, by using an appropiate post ARB-heat treatment, this technique can aslo be used to strengthen the sheet material by the formation of intermatallic phases in the sheet. In the talk, microstructural and mechanical properties with respect to the processing parameters will be discussed in detail.