Dresden 2009 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 35: Poster Session II
MM 35.26: Poster
Mittwoch, 25. März 2009, 16:30–18:30, P4
High Temperature deformation of Tungsten — •Armin Huber1, Bernd Eberhard2, Andreas Spörhase1, and Ferdinand Haider1 — 1Univ. Augsburg — 2Osram GmbH, Schwabmünchen
To study the high temperature deformation behaviour of tungsten wires at temperatures up to or beyond 2000°C, we constructed a high temperature deformation chamber. The wire is heated by direct current flow, temperature is controlled pyrometrically and the local elongation is measured optically. We present the construction, validation and first results for tensile deformation experiments of tungsten wires as a function of deformation temperature, wire thickness and material composition. These results are compared to results of conventional experiments at lower temperature.