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Anwendung des in-beam PET Therapiemonitorings auf Präzisionsbestrahlungen mit Helium-Ionen
2008, Fiedler, Fine
[no abstract available]
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Entwicklung des Neutronentransportcodes TransRay und Untersuchungen zur zwei- und dreidimensionalen Berechnung effektiver Gruppenwirkungsquerschnitte
2008, Beckert, Carsten
[no abstract available]
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A model for the austenite-ferrite phase transition in steel including misfit stress
2008, Dreyer, Wolfgang, Hömberg, Dietmar, Petzold, Thomas
We present a thermodynamically consistent model to describe the austenite-ferrite phase transition in steel. We consider the influence of the mechanical displacement field due to eigenstrains caused by volumetric expansion. The model equations are derived in a systematical framework. They are based on the conservation laws for mass and momentum and the second law of thermodynamics. By means of numerical computations for a simplified interface controlled model, we examine the influence of the mechanical contributions to the transformation kinetics and the equilibrium states.