| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Saastamoinen, Ari
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2022Impact-abrasive and abrasive wear behavior of low carbon steels with a range of hardness-toughness propertiescitations
- 2020Impact-abrasive and abrasive wear behavior of low carbon steels with a range of hardness-toughness propertiescitations
- 2020Constitutive modelling of hot deformation behaviour of a CoCrFeMnNi high-entropy alloycitations
- 2019Annealing Effects on the Microstructure and Properties of Vanadium and Molybdenum Rich FCC High Entropy Alloycitations
- 2019Microstructure and Mechanical Properties of Nb and V Microalloyed TRIP-Assisted Steelscitations
- 2019Quenching and Partitioning of Multiphase Aluminum-Added Steelscitations
- 2019Direct-quenched and tempered low-C high-strength structural steel: The role of chemical composition on microstructure and mechanical propertiescitations
- 2018The effect of tempering temperature on microstructure, mechanical properties and bendability of direct-quenched low-alloy strip steelcitations
- 2018The effect of finish rolling temperature and tempering on the microstructure, mechanical properties and dislocation density of direct-quenched steelcitations
- 2017The effect of thermomechanical treatment and tempering on the subsurface microstructure and bendability of direct-quenched low-carbon strip steelcitations
- 2015Fast Salt Bath Heat Treatment for a Bainitic/Martensitic Low-Carbon Low-Alloyed Steelcitations
Places of action
| Organizations | Location | People |
|---|
article
Constitutive modelling of hot deformation behaviour of a CoCrFeMnNi high-entropy alloy
Abstract
Models describing the constitutive flow behaviour of a metallic material are desired for appropriate process design and realization of defect-free components. In this study, constitutive equations based on the hyperbolic-sinusoidal Arrhenius-type model have been developed to define the hot deformation characteristics of a CoCrFeMnNi high entropy alloy. The experimental true stress-true strain data were generated over a wide temperature (1023-1423 K) and strain rates (10−3-10 s−1) ranges. The impact of strain rate and temperature on deformation behaviour was further characterized through a temperature compensated strain rate parameter, i.e. Zener-Hollomon parameter. Additionally, a mathematical relation was employed to express the influence of various material constants on true-strain ranging from 0.2 to 0.75. Typical third order polynomial relations were found to be appropriate to fit the true-strain dependency of these material constants. The accuracy of the developed constitutive equations was evaluated by using the average absolute relative error (AARE) and correlation co-efficient (R); the obtained values were 7.63% and 0.9858, respectively, suggesting reasonable predictions. These results demonstrate that the developed constitutive equations can predict the flow stress behaviour of the alloy with a good accuracy over a wide range of temperature and strain rate conditions and for large strains. ; Peer reviewed