Yazar "Fleck, Claudia" için listeleme
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Analyzing the influence of the investment casting process parameters on microstructure and mechanical properties of open-pore Al–7Si foams
Firoozbakht, Mahan; Blond, Aurelien; Zimmermann, Golo; Kaya, Ali Can; Fleck, Claudia; Bührig-Polaczek, Andreas (2023)Aluminum alloy foams with high specific compressive strength and good energy absorption capacity are widely used as structural materials and shock absorbers. The investment casting process offers an interesting opportunity ... -
Fatigue and corrosion-fatigue behavior of the β-metastableTi-5Al-5Mo-5V-3Cr alloy processed by laser powder bedfusion
Kaya, Ali Can; Alcântara, Erika Gabriele Alves; Meinke, Reinhard; Selve, Sören; Fleck, Claudia (2024)We performed rotating bending tests and axial (tension-compression) loadincrease and constant amplitude high-cycle fatigue tests in air and Hanks' balanced salt solution (HBSS) on the β-metastable titanium alloy Ti-5Al-5Mo-5V3Cr, ... -
Foams of gray cast iron as efficient energy absorption structures: a feasibility study
Kaya, Ali Can; Zaslansky, Paul; Rack, Alexander; Fischer, Sebastian F.; Fleck, Claudia (Wiley-V C H Verlag Gmbh, 2019)Gray cast iron foams, were produced using a reticulated polyurethane by using a modified investment casting process. To evaluate the attributes of the produced micro-geometries, foam segments and single struts are investigated ... -
Influence of anisotropy on the deformation behaviour in microtensile 316L steel specimens fabricated by laser powder bed fusion (PBF-LB/M)
Kaya, Ali Can; Fleck, Claudia; Salamci, Metin U. (2023)Laser powder bed fusion of metals (PBF LB/M) allows fabrication of intricate structures without any need of tools and moulds. In this process the building orientation becomes a significant issue for the complex structures. ... -
Micro and nano damage observations of martensitic and austenitic open cell cast foams
Kaya, Ali Can; Fromert, Jan; Jost, Norbert; Fleck, Claudia (Elsevier Science, 2022)In current study a detailed investigation of the 304 austenitic and 420 martensitic foams damage has been carried out at all hierarchical levels. In-situ compression testing of foams and microtensile testing of single ... -
Modeling of complex gray cast iron open-cell foams revealing insights on failure and deformation on different hierarchical length-scales
Kaya, Ali Can; Zaslansky, Paul; Fleck, Claudia (Wiley-VCH, 2021)Open-cell gray cast iron foams are a class of porous materials of increasing interest, with great potential to be used in energy damping applications and for sound isolation. We created finite element (FE) models from 3D ... -
Modification of open-cell cast aluminum-silicon foams with strontium
The mechanical properties of open-cell aluminum foams can be influenced by enhancing the microstructure of the struts. The foams produced by investment casting face slow cooling rates, which makes it challenging to improve ... -
Relation between Tensile Strut and Compressive Foam Deformation Behaviour: Failure Mechanisms and the Influence of Dendritic Versus Globular Grain Structure in an AlSi7Mg0.3 (A356) Precision‐Cast Open‐Cell Foam
Open-cell aluminum foams are gaining importance for the design of lightweightstructures and as electrodes in lithium-ion batteries. AlSi7Mg0.3 foams areproduced by a modified investment casting process. By tuning the mold ... -
Single steel strut mechanical testing: challenges and future research directions
Kaya, Ali Can; Zaslansky, Paul; Fischer, Sebastian; Fleck, Claudia (Taylor & Francis Ltd, 2019)Open-cell stainless steel foams, composed of hollow struts, are excellent candidates for energy absorption and thermo-mechanical applications. The basic mechanical element responsible for the function of these foams is the ... -
Strain hardening reduces energy absorption efficiency of austenitic stainless steel foams while porosity does not
Kaya, Ali Can; Zaslansky, Paul; İpekoğlu, Mehmet; Fleck, Claudia (Elsevier Sci Ltd, 2018)Strain hardening significantly affects the mechanical function of steel foams. We compare hardening and failure of two commercially available austenitic stainless steel foams (316L and 310) spanning strut porosities of 9.4 ...
