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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Olier, Patrick
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2021Effect of Aging Heat Treatment at 400-600°C on the Microstructure and Tensile Properties of 15Cr-15Ni Ti-Stabilized Steel Cladding
- 2021Numerical assessment of large hexagonal seamless steel tube extrusion feasibilitycitations
- 2021Effect of aging heat treatment at 400-600°C on the microstructure and tensile properties of 15Cr-15Ni Ti-stabilized steel cladding
- 2020Loss of ductility in optimized austenitic steel at moderate temperature: A multi-scale study of deformation mechanismscitations
- 2019Fabrication and characterization of 15Cr-15Ni austenitic steel cladding tubes for sodium fast reactors
- 2018Fabrication and characterization of 15Cr-15Ni austenitic steel cladding tubes for sodium fast reactors
- 2017Singularities of tensile behavior of advanced austenitic steels obtained by different cold processes
- 2015Comparison of 15Cr-15Ni Austenitic Steel Cladding Tubes Obtained by HPTR Cold Pilgering or by Cold Drawingcitations
- 2015Comparison of 15Cr-15Ni austenitic steel cladding tubes obtained by HPTR cold pilgering or by cold drawingcitations
- 2013Relationships between mechanical behavior and microstructural evolutions in Fe 9Cr-ODS during the fabrication route of SFR cladding tubescitations
- 2013Microstructure and Properties of a Three-Layer Nuclear Fuel Cladding Prototype Containing Erbium as a Neutronic Burnable Poisoncitations
- 2012Assessment of a new fabrication route for Fe-9Cr-1W ODS cladding tubescitations
- 2012Optimization of the Fabrication Route of Ferritic/Martensitic ODS Cladding Tubes: Metallurgical Approach and Pilgering Numerical Modeling
- 2011Effect of interfacial oxidation occurring during the duplex process combining surface nanocrystallisation and co-rolling
- 2009High Strength Nanocrystallized Multilayered Structure Obtained by Smat and Co-rollingcitations
- 2008Microstructural and Cold Workability Assessment of a New ODS Ferritic Steelcitations
- 2008Combination of the SMA-treatment and the co-rolling process for the production of a nanostructured composite structure
- 2007Comportement mécanique d'une structure multicouche obtenue par co- laminage de tôles nanostructurées par SMAT
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article
Numerical assessment of large hexagonal seamless steel tube extrusion feasibility
Abstract
The study assesses feasibility of hot extrusion of a large seamless hexagonal 9%Cr-1%Mo steel tube. The manufacturing chain starts from a pierced cylindrical billet, hot extruded and to be further cold drawn in several passes. Preliminary industrial tests have shown thickness reduction in extrusion limited by a huge initial force peak (+25 %) reaching the press capacity. To understand this force peak, thermomechanical numerical simulation (ForgeNxt®) of the furnace-press transfer and extrusion stages is carried out. Constitutive model at high temperature, high strain and strain rate has been selected from literature. Surface properties, namely Heat Transfer Coefficient (HTC) and friction coefficient, have been made space- and time-dependent to represent glass lubrication. Numerical results are qualitatively compared to industrial experimental values to evaluate the prediction of the model. It suggests that the difficult start of the glass melting and flow along a cooled die affects the force peak. Practical improvements are suggested on this basis, together with possible refinements of the simulation for more precision and insight into extruded tube quality.