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Microtomography and Creep Modeling of a Short Fiber Reinforced Aluminum Piston Alloy


  • E. Marks, G. Requena, and H. P. Degischer would like to thank the financial support provided by the Austrian Science Fund (project number P19634-N19), without their contribution this work could not have been possible. The authors also acknowledge the European Synchrotron Radiation Facility for provision of synchrotron radiation facilities at the ID19 beamline.


Interconnectivity between eutectic silicon and short fibers in an AlSi12CuNiMg/Al2O3/15s composite increases with long-term creep exposure time due to diffusion. It is also observed that the stationary creep rate decreases significantly compared to the initial stationary creep rate. Interconnectivity between rigid phases is analyzed and three-dimensional statistical functions are applied to deduce the representative volume elements of the composite in different conditions. Unit cell geometrical models are generated to simulate the stationary creep behavior using the finite element method.