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Michael Schöbel (TU München, Germany)19/06/2019, 10:30HighlightThe need for efficient and clean solutions, due to the increasing current environmental regulations puts extra pressure on new combustion engine development, to compete in a market with alternative driving concepts. Downsizing and weight reduction can reduce the engine emission and efficiency, but require light alloys with superior thermo-mechanical properties for high temperature exposure...Go to contribution page
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SHAOJIE ZHANG (Mines Paristech, PSL Research University - ARMINES CEMEF)19/06/2019, 10:50Oral PresentationContinuous casting is currently the main industrial process for steel production. Since long time, industries search for efficient simulation methods, by which macrosegregation and deformation induced cracks can be predicted. As a first step this requires achieving concurrent simulation of fluid flow and stress-strain. Therefore, a partitioned solution algorithm is developed for such...Go to contribution page
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Elif Yılmaz (Kayseri University)19/06/2019, 11:10Oral PresentationThe grain boundary groove method has been successfully used to measure solid-liquid interfacial energies, σSL, experimentally for binary eutectic and peritectic systems, multi-component systems as well as pure materials and for opaque materials as well as transparent materials. It was shown that the grain boundary groove method can be use to obtain σSL for any alloy system provided that the...Go to contribution page
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Witold K. Krajewski (AGH University of Science and Technology, Faculty of Foundry Engineering, 23 Reymonta Street, 30-059 Krakow, Poland)19/06/2019, 11:30Oral PresentationThe foundry engineering still needs new cast materials of improved properties. These can be achieved by elaborating completely new alloys and metal matrix composites or by elaborating the alloys/composites basing on the already very well-known matrixes. The good example of the latter solution are high-aluminium zinc (H-Al Zn) and high-zinc aluminium cast alloys (H-Zn Al). Both of these...Go to contribution page
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Haidong Zhao (National Engineering Research Center of Near-net Shape Forming for Metallic Materials, South China University of Technology)19/06/2019, 11:50Oral PresentationIn this study, the pores in die-cast AlSiMgMn alloys were inspected and reconstructed with high resolution three-dimensional (3D) X-ray micro computed tomograpgy (μ-CT) technique. Finite element (FE) meshes were built with consideration of the pore actural morphorloges from the CT inspection. Based on dutile damage model, the FE simulation of tensile fracture of the alloys was carried out. The...Go to contribution page
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Gottfried Laschet (ACCESS e.V.)19/06/2019, 13:30KeynoteComprehensive thermomechanical casting simulations offer the opportunity to increase the dimensional accuracy of cast parts. These simulations require accurate material properties, which are delicate to measure experimentally in the mushy zone. These properties are often specified only as function of the temperature, neglecting the impact of the non-equilibrium character of the evolving...Go to contribution page
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Farzaneh Farhang Mehr (University of British Columbia)19/06/2019, 14:00Oral PresentationIn recent years, the automotive industry has been increasing the production of small, high-power gas engines as part of several strategies to achieve the new “Corporate Average Fuel Economy” (CAFE) standards. This trend requires an improvement in the thermal and mechanical fatigue durability of the aluminium alloys used in the production of the cylinder blocks in these engines....Go to contribution page
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Alexander Vakhrushev (Christian Doppler Laboratory, Montantunivesitaet Leoben)19/06/2019, 14:20Oral PresentationAs it is known from literature, the metals tend to follow a viscoplastic law at high temperatures. Thereby, based on the authors’ previous developments to simulate the behavior of the equiaxed crystals packed bed, a viscoplastic stress model is applied to the thin slab casting process. The model is reduced to the single phase mixture formulation for faster and robust simulations. In this idea,...Go to contribution page
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Prof. Christoph Beckermann (University of Iowa)19/06/2019, 14:40Oral PresentationThe determination of pattern dimensions using simulation is an inefficient trial-anderror process that requires several design iterations. In this study, the finite element inverse elastoplastic analysis is utilized to calculate the pattern geometry in a single iteration for a plastically deformed body. A simplified casting system is simulated to demonstrate the feasibility of the inverse...Go to contribution page
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Johan Jansson (Jönköping University)19/06/2019, 15:00Oral PresentationCast components generally show a heterogeneous distribution of material properties, caused by variations in the microstructure that forms during solidification. Variations caused by the casting process are not commonly considered in structural analyses, which might result in manufacturing of sub-optimised components with unexpected in-use behaviour. In this paper, we present a methodology...Go to contribution page
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Charles Monroe (UAB)19/06/2019, 15:20Oral PresentationChills are used in the production of metal castings as a thermal aid to promote directional solidification in casted sections. This study will review microstructure and thermal circumstances of the internal chill interface where the chill is intended to be incorporated into the structure of the cast section. The conditions for interface coherency of cast steel sections from 25 to 50mm will be...Go to contribution page
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