Projects |
Written by Kamoutsi Eleni |
Sunday, 20 March 2016 20:05 |
[1] Optimization
of Microstructure in Multiphase Steels Containing Retained Austenite /Control
and Exploitation of the Bake Hardening Effect in Multiphase High-Strength
Steels(2000-2006). Funding organization: European Community of Steel
and Coal (ECSC). Partners: Steel Companies (Thyssen Krupp Stahl, Voest
Alpine, Arcelor Group), Universities (RWTH-Aachen, Univ. Ghent). Research is
focused in developing a new class of high strength high-formability steel sheet
for automotive applications. These new TRIP steels are based on the
strain-induced martensitic transformation of retained austenite (transformation
plasticity). Topics investigated include: austenite stabilization, modeling and
determination of austenite stability, modeling of strain-induced
transformation, bake hardening effects, computational kinetics modeling of
intercritical annealing. [2] Corrosion
and Hydrogen Embrittlement of Aircraft Aluminium Alloys (2002-2004). Funding
organization: Airbus Consortium. Partners: Univ.Patras. The
objective of the research is to investigate hydrogen uptake and trapping during
corrosion of Al-alloys. Trap characterization is performed by combining thermal
desorption measurements with microstructural characterization employing optical
and scanning electron microscopy as well as AFM. The effect of hydrogen
trapping is quantified with tensile, fracture toughness and fatigue testing. [3] Simulation
of Extrusion and Heat treatment of Hard Aluminium Alloys. Funding
organization: GSRT. Partners: Exalco Aluminium Company. Research is
focused in modeling the discrete steps in aluminium extrusion processing, i.e.
casting and billet solidification, development of microsegragation,
homogenization, extrusion, disollution, and ageing. These models are linked and
interdependent. A detailed microstructural characterization after every
processing step supports the modeling effort. [4] Microstructural
Evolution in the Heat Affected Zone of Aluminium Laser Welds (1998-2004). Funding
organization:GSRT. Research is focused on the application of computational
thermodynamics and kinetics combined with FEM-based thermal analysis for
modeling of dissolution, precipitation and coarsening of strengthening phases
during the ultra-rapid thermal cycle encountered in laser welding of
high-strenth aluminium alloys such as 6061-T6. The effect of process parameters
is investigated in an effort to design efficient and reliable laser welding
techniques for aircraft and automotive aluminium alloys. [5] Control
and exploitation of the bake-hardening effect in multi-phase high-strength
steels (2002-2005). Funding Organization: European Community of
Steel and Coal (ECSC). Partners: Steel Companies (Thyssen Krupp Stahl,
Voest Alpine, Arcelor Group), Universities (RWTH-Aachen, Univ. Ghent). Research
is focused on the investigation of further strength improvents in TRIP steels
via the bake hardening effect. Modelling of carbon segregation in austenite
during the bainitic transformation of TRIP steels. Modelling of retained
austenite volume fraction vs bainite isothermal transformation time. [6] Aeronautical
Application of Wrought Magnesium - AEROMAG (2005-2009). Funding
organization: EU-STREP. Research is focused on the deformation and fracture
mechanisms as well corrosion mechanisms
of wrought Mg alloys . Partners: EADS-Airbus, Salgitter, Magnesium
Electron, Eurocopter, et al. [7] Design of Bainite in TRIP Steels (2007-2010).
Funding Organization: EU-Research Fund for Steel and Coal (RFCS). Partners:
Steel Companies (Thyssen Krupp Stahl, Voest Alpine), Universities (RWTH-Aachen,
CEIT). Research is focused on the modeling of bainitic transformation for the
design of alloy compositions and heat treatment processes that lead to
austenite stabilization and optimize the mechanical performance of TRIP steels. [8] On-line optimization of production
methodology of solar thermal systems – SUNLASER (2011-2013). Funding
organization: GSRT. Partners: Prime Laser Technology, Cereteth,
FORTH-IESL. Research is focused on the evaluation of the bimetallic Al-Cu laser
welds used in the construction of advanced solar panels. Evaluation includes
metallographic analysis of weld metal constitution and characterization of
intermetallic compound distribution and correlation with mechanical properties. [8] Evaluation and Control of Rolling Contact
Fatigue in Rail Steels - DECORAIL (2013-2015). Funding Organization:
GSRT. Partners: Urban Rail Transports S.A. (STA.SY), Demokritos National
center for scientific research. The program is focused on the evaluation of RCF
damage in rail steels (crack initiation and propagation through the rails) and
the evaluation of failure senarios in order to develop a methodology for the
total control of RCF in the system of Athens Metro. [9] Design Rules for Third Generation (3G)
Advanced High Strength Steels – IKYDA (2014-2015). Funding Organizations:
IKY and DADD. Partner: Institute for Ferrous Metallurgy, RWTH-Aachen.
Research is focused on the development of new medium-Mn advanced high-strength
steels with austenitic dispersions for transformation plasticity interactions.
Computational thermodynamics and kinetics-based design of alloy compositions
and heat treatments. Modelling of strain-induced martensitic transformations in
dispered systems. [10] Toolkit for the design of damage tolerant microstructures- TOOLKIT (2016-2019). Funding Organization: EU-Research Fund for Steel and Coal (RFCS). Partners: Steel Companies (Thyssen Krupp Stahl, OCAS, Korinth Pipeworks), Universities (RWTH-Aachen, University of Ghent). The project aims at developing microstructural configurations that provide the required properties for damage tolerance in dual phase and HSLA steels. Design of suitable processing parameters to achieve thw tailored microstructures (in collaboration with Prof. N. Aravas). [11] Development of affordable integrated lightweight components from flexible 3G medium-Mn steels – LightChassis (2017-2020). Funding Organization: Research Fund for Steel and Coal (RFCS). Partners: Salzgitter Mannesmann Forschung, Autotech Engineering, RWTH-Aachen, Centro Ricerche FIAT, ISQ). The project aims to design and deliver chassis components made from novel 3rd generation advanced high-strength medium-Mn steels. Computational alloy design will be applied in order to determine optimum alloy compositions and process windows. The alloy will be produced by novel belt casting technology. The component design will include detailed forming and welding analysis. |
Last Updated on Sunday, 17 November 2019 15:27 |