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MM: Fachverband Metall- und Materialphysik

MM 16: Structural Materials

MM 16.8: Talk

Tuesday, March 15, 2011, 12:45–13:00, IFW D

Light weight metal compounds with ultra-fine grained microstructure — •Tom Marr^1,2, Jens Freudenberger², Juliane Scharnweber¹, Carl-Georg Oertel¹, Werner Skrotzki¹, Uwe Siegel², Uta Kühn², Jürgen Eckert², Ulrich Martin³, and Ludwig Schultz^1,2 — ¹TU Dresden — ²IFW Dresden — ³TU Bergakademie Freiberg

Composites of titanium and aluminium have been severely plastically deformed using a repetitive bundling and swaging technique. This process allows to reaching high logarithmic deformation strains. In consequence, an ultra-fine grained microstructure of all phases is observed, resulting in a high specific strength, making this materials suitable for constructive applications. Among these composites, ultimate tensile strengths of around 800 to 900 MPa are reached in combination with a final mass density of 3-4 g/cm³.