Dresden 2017 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 52: Microstructure and Phase Transformations - phase stability
MM 52.1: Vortrag
Mittwoch, 22. März 2017, 17:00–17:15, IFW B
Microstructure-engineering of near-α titanium alloys — •Stefanie Sandlöbes1,2, Zahra Tarzimoghadam2, Sandra Korte-Kerzel1, and Dierk Raabe2 — 1Institut für Metallkunde und Metallphysik, RWTH Aachen University, Aachen, Germany — 2Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany
Lean alloying of the beta-stabilizing elements Fe and Mo to titanium in combination with appropriate heat treatments enables one to manipulate the microstructure. Consequently, the mechanical properties can be tailored covering a broad range from low yield strength and high ductility to high yield strength and medium ductility. By applying multi-scale characterization of the mechanical properties and microstructures it is shown that local segregation and partitioning phenomena on the nano-scale are causing local allotropic and martensitic transformations and significantly alter the active deformation mechanisms.