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19 results on '"Germann, Holger"'

8. Fast segmentation of 3D and 4D tomography using deep learning

Author

Strohmann, Tobias, Bugelnig, Katrin, Breitbarth, Eric, Mockenhaupt, Florian, Requena, Guillermo, Wilde, Fabian, Steffens, Thomas, Germann, Holger, and Boller, Elodie

Subjects
al-si alloy, neural network, synchrotron, deep learning
Published
2020

10. In-situ 3D imaging of damage processes in cast Al-Si piston alloys

Author

Bugelnig, Katrin, Sket, Federico, Germann, Holger, Steffens, Thomas, Koos, Robert, Adrien, Jerome, Maire, Eiric, Wilde, Fabian, Boller, Elodie, and Requena, Guillermo

Subjects
solution treatment, in-situ tensile testing, 3D characterization, Al-Si alloys, 3D connectivity, synchrotron tomography
Published
2019

12. Damage mechanisms and evolution during thermomechanical fatigue of cast near eutectic Al-Si piston alloys

Author

Bugelnig, Katrin, Germann, Holger, Steffens, Thomas, Wilde, Fabian, Boller, Elodie, and Requena, Guillermo

Subjects
Al-Si piston alloys, thermo-mechanical fatigue, damage characterization, Metallische Strukturen und hybride Werkstoffsysteme, synchrotron tomography
Abstract

Euromat2017, Euromat2017, Thessaloniki, Greece, 17 Sep 2017 - 21 Sep 2017

Published
2017
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14. 3D microstructure and damage accumulation in a cast AlSi12Cu5Ni2 piston alloy as a function of solution Treatment

Author

Bugelnig, Katrin, Sket, Federico, Germann, Holger, Steffens, Thomas, Wilde, Fabian, Boller, Elodie, and Requena, Guillermo

Subjects
Al-Si piston alloys, solution treatment, Metallische Strukturen und hybride Werkstoffsysteme, damage evolution, 3D microstructure, synchrotron tomography
Abstract

The microstructural evolution as well as the damage mecha nisms and accumulation during RT tensile deformation of an AlSi12Cu5Ni2 piston alloy for high performance die sel truck engines are studied as a function of solution heat treatment (ST) time at 500°C. For this, interrupted in-situ synchrotron tomography experiments are combined with conventional metallography investigations. The study shows that the lower resistance to structural damage of the alloy after ST is linked to the local disintegration of the highly interconnected 3D network formed by intermetallics and Si embedded in the Al-matrix.

Published
2016

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