Design of an experimental simulator of void closure during hot rolling process

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Design of an experimental simulator of void closure during hot rolling process

GOPAKUMAR Akhil, LANGLOIS Laurent, PONDAVEN Corentin, BIGOT Régis

Abstract. The shrinkage porosities produced during the casting of steel blooms has to be fixed by the subsequent hot rolling process. To design the rolling route, finite element simulations integrating void closure models are necessary. However, these models have to be validated by experimental results. Because experiments under industrial conditions are hardly achievable, experimental simulations at lower scale can be considered. However, the experiment must be designed so as to reproduce industrial like conditions concerning the thermomechanical loading and microstructure with respect to void closure. Among the main parameters driving void closure are the equivalent plastic strain and the mean triaxiality. This paper is dedicated to the design of an experimental simulator of void closure during hot rolling. The simulator consists of several strokes performed on a sample containing a real shrinkage porosity, between shaped anvils and with alternations of the forming direction.

Keywords
Open Die Forging, Experimental Simulation, Finite Element Simulation, Porosity Closure

Published online 4/24/2024, 10 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: GOPAKUMAR Akhil, LANGLOIS Laurent, PONDAVEN Corentin, BIGOT Régis, Design of an experimental simulator of void closure during hot rolling process, Materials Research Proceedings, Vol. 41, pp 832-841, 2024

DOI: https://doi.org/10.21741/9781644903131-91

The article was published as article 91 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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