Gerald Klaus
RWTH Aachen University
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Publication
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Materials Science Forum | 2011
Daniela Zander; Meredith Heilig; Norbert Hort; Gerald Klaus; Andreas Bührig Polaczek; Joachim Gröbner; Rainer Schmid Fetzer
Investigations of AZ91D revealed a strong influence of mainly the following microstructural parameters on corrosion: porosity, the eutectic, the Al-content of the Mg-phase as well as the volume fraction and distribution of gamma-Al12Mg17. Further an improved corrosion resistance was observed by the addition of rare earth elements. The influence of Ce on microstructure and corrosion of sand cast and high pressure die cast AZ91D with 0.5-2.0 wt.% Ce was investigated by SEM before and after potentiodynamic polarization measurements in pH7.5 (bi-distilled water adjusted with KOH). It was observed that Ce significantly improved the corrosion resistance by changing the microstructure. A strong influence of Ce on the average grain size, the fraction of the eutectic, changes in morphology and/or volume fraction of gamma Al12Mg17 and formation of a Ce-rich intermetallic phase was observed. Therefore, not only the chemical composition but also the change of microstructure and the formation of micro-galvanic elements influence the local corrosion mechanism of AZ91D with cerium.
Advanced Engineering Materials | 2006
ByBernd Böttger; Janin Eiken; M. Ohno; Gerald Klaus; Martin Fehlbier; Rainer Schmid-Fetzer; Ingo Steinbach; Andreas Bührig-Polaczek
Archive | 2010
Meredith Heilig; Andreas Bührig-Polaczek; Norbert Hort; Rainer Schmid-Fetzer; Brajendra Mishra; Brita Daniela Zander; Gerald Klaus; Joachim Gröbner
Archive | 2009
Janin Eiken; Ingo Steinbach; Rainer Schmid-Fetzer; Gerald Klaus; Djordje Mirković; Andreas Bührig-Polaczek
Advanced Engineering Materials | 2006
Bernd Böttger; Janin Eiken; M. Ohno; Gerald Klaus; Martin Fehlbier; Rainer Schmid-Fetzer; Ingo Steinbach; Andreas Bührig-Polaczek
Archive | 2011
Gerald Klaus; Andreas Bührig-Polaczek
Archive | 2011
Andreas Bührig-Polaczek; Matthias Jakob; Christian Oberschelp; Samuel Bogner; Stephan Freyberger; Uwe Vroomen; Heiner Michels; Gerald Klaus
8th International Conference on Magnesium Alloys and their Applications | 2010
Gerald Klaus; A. Janz; Andreas Bührig-Polaczek; Janin Eiken; Rainer Schmid-Fetzer; Bernd Böttger; Joachim Gröbner
Archive | 2009
Meredith Heilig; Andreas Bührig-Polaczek; D. Olson; Norbert Hort; Brita Daniela Zander; Gerald Klaus; Brajendra Mishra
Giesserei | 2009
Niels Nowack; Christian Oberschelp; Bin Lao; Gerald Klaus; Andreas Bührig-Polaczek; Thilo Röth
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National Institute for Interdisciplinary Science and Technology
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