Dresden 2017 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

MM: Fachverband Metall- und Materialphysik

MM 34: Poster session II

MM 34.40: Poster

Tuesday, March 21, 2017, 18:30–20:30, P4

Microstructure and Mechanical behavior of Copper-Iron Multilayers produced by Accumulative Roll Bonding — •Maher Ghanem, Benoit Merle, Heinz Werner Höppel, and Mathias Göken — Department of Materials Science and Engineering, Institute I, University of Erlangen-Nürnberg (FAU), Germany

The accumulative roll bonding (ARB) process has been applied recently to produce multilayer composites with grain sizes in the range of submicron to nanometer. Such multilayer composites show a good ductility with reported tremendous increases in strength as the grain sizes are refined down to the submicron range.

Laminated Cu/Fe Nanocomposite with alternating layers of Oxygen-free copper (OFC) (>99.99% pure) and pure iron (99.85%) were produced by accumulative roll-bonding (ARB). The Nanocomposite was successfully roll bonded with 50% reduction through the addition of a heat treatment step at 150°C after each pass. The process was performed up to 8 passes (N8). Microstructure of the nanocomposites was evaluated using scanning electron microscope in the backscattered mode (BSE-SEM). Mechanical properties were investigated through tensile and nanoindentation tests. Nanoindentation and tensile tests were performed in order to observe the changes in the mechanical properties of samples both locally and globally as the number of ARB passes increased.