Browsing by Author "Toros S."
Now showing items 1-11 of 11
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3D microstructural finite element simulation of martensitic transformation of TRIP steels
In this paper the effects of deformation modes on martensitic transformation for TRIP steels which are composed of Ferrite, Bainite and Retained austenite are investigated in the view of the microstructural level. For this ... -
Determination of formability characteristics of Crofer 22 APU sheets as interconnector for solid oxide fuel cells
Timurkutluk B.; Toros S.; Onbilgin S.; Korkmaz H.G. (Elsevier Ltd, 2018)In this study, the general formability characteristics of Crofer® 22 APU sheets of different thicknesses (0.2 mm–1.0 mm) are experimentally investigated via tensile, out of plane, Erichsen, cupping and springback tests for ... -
The effects of temperature and strain rate on yielding and springback behaviour of DP1000 dual phase steel
Çavuşoglu O.; Toros S.; Gürün H. (Institute of Physics Publishing, 2019)This study aims to investigate the effects of the temperature and strain rate on the yielding and springback behavior of DP1000 advanced high strength steel. For this purpose, material properties were defined using tensile ... -
Evaluation of anisotropy by two different tests for TRIP800 steel
For the process modeling, material properties such as anisotropy values at different orientation are very important. The most commonly used method for the determining of the anisotropy values is the tensile test that is ... -
Experimental Research and Mathematical Modeling of Parameters Effecting on Cutting Force and SurfaceRoughness in CNC Turning Process
In this paper, the effects of cutting parameters on cutting forces and surface roughness based on Taguchi experimental design method are determined. Taguchi L9 orthogonal array is used to investigate the effects of machining ... -
Geometric optimization of an ejector for a 4 kW SOFC system with anode off-gas recycle
Genc O.; Toros S.; Timurkutluk B. (Elsevier Ltd, 2018)One of the important energy saving tools used in solid oxide fuel cell (SOFC) system is the anode off-gas recycling (AGR) via an ejector which allows the recirculation of the unused fuels in the anode exhaust gas including ... -
Influence of sintering support design on the properties of NiO-YSZ anode support micro-tubes
Timurkutluk B.; Timurkutluk C.; Toros S.; Kaplan Y. (Elsevier Ltd, 2018)The effects of the sintering support design on the microstructural and mechanical properties of NiO/YSZ anode support micro-tubes are investigated in this study. For this purpose, a number of micro-tubes of the same ... -
Investigation of Hydro-piercing Method for Stainless Steels by Finite Element Method
Gökay Korkmaz H.; Toros S.; Halkaci M.; Halkaci H.S. (EDP Sciences, 2018)Researches and studies on hydroforming process, which is a method that is getting more and more popular every day thanks to its many advantages in application, are ongoing. It is possible to pierce-the holes on a tube or ... -
Numerical optimization of channel to land width ratio for PEM fuel cell
Chowdhury M.Z.; Genc O.; Toros S. (Elsevier Ltd, 2018)Flow field plays a vital role in proton exchange membrane (PEM) fuel cell where channel geometry being the primary factor. Most of the channel geometry analyses were limited to few number of case studies, whereas in this ... -
Springback evaluation of 5052-H32 aluminum-magnesium alloy
Springback is one of the most common problems in sheet metal forming operation. It causes improper fit which creates serious problems during assembly of the parts. Based on material strength, a considerable elastic recovery ... -
Strain rate sensitivity and strain hardening response of DP1000 dual phase steel
Çavusoglu O.; Gürün H.; Toros S.; Güral A. (EDP Sciences, 2018)In this study, strain hardening and strain rate sensitivity behavior of commercial DP1000 dual phase steel have been examined in detail at temperatures of 25 °C, 100 °C, 200 °C and 300 °C, at strain rates of 0.0016 s -1 ...
