Berlin 2012 – scientific programme
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MM: Fachverband Metall- und Materialphysik
MM 17: Poster Session
MM 17.51: Poster
Monday, March 26, 2012, 17:00–19:00, Poster B
Influence of Quenching & Partitioning on martensite and austenite phase composition in steel — •Karin Rüster1, Andre Steffen1, Michael Paulus1, Christian Sternemann1, Metin Tolan1, Niko Große-Heilmann2, Christian Kronholz2, and Andreas Peters2 — 1Fakultät Physik / Delta, TU Dortmund, Germany — 2Benteler Tube Management GmbH, Paderborn, Germany
Steel is a common material in our daily life. Macroscopic characteristics (e.g. hardness, tensile properties...) of steel are affected by the crystalline structure, i.e. austenite and martensite phase, which is changed during heat treatment. During the process of Quenching and Partitioning carbon diffuses from martensite to austenite, enriches the austenite and thereby stabilises the phase of austenite. This way a microstructure with retained austenite is produced. To analyse the influence of heating and cooling XRD-experiments have been carried out, ex-situ for pre-treated samples and in-situ. The experiment was performed at beamline BL9 at Delta.