Article (Scientific journals)
FE modeling of the cooling and tempering steps of bimetallic rolling mill rolls
Neira Torres, Ingrid; Gilles, Gaëtan; Tchuindjang, Jérôme Tchoufack et al.
2017In International Journal of Material Forming, Volume 10, (Issue 3), p. 287–305
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Keywords :
Phase transformation; Residual stresses; FE simulations; Bimetallic rolls; Cooling; Heat treatment
Abstract :
[en] Numerical simulations enable the analysis of the stress and strain histories of bimetallic rolling mill rolls. The history of rolling mill rolls is simulated by thermo-mechanical metallurgical finite element code while considering two steps: post-casting cooling and subsequent tempering heat treatment. The model requires a notably large set of material parameters. For different phases and temperatures, Young modulus, yield limit and tangent plastic modulus are determined through compression tests. Rupture stresses and strains are obtained by tensile tests. Thermo-physical parameters are measured by such experimental methods as dilatometry, DSC (Differential Scanning Calorimetry) and Laser Flash methods. Such parameters as the transformation plasticity coefiicients for the ferrite, pearlite and martensite phases are identified through an inverse method. From the simulation results, the profile of the stresses evolution at different critical times is presented. An analysis of the potential damage is proposed by comparing the predicted axial stress \vith rupture stresses. The perspective of the Ghosh and McClintock damage criteria is also investigated.
Disciplines :
Materials science & engineering
Author, co-author :
Neira Torres, Ingrid
Gilles, Gaëtan ;  Université de Liège > Département ArGEnCo > Département Argenco : Secteur MS2F
Tchuindjang, Jérôme Tchoufack  ;  Université de Liège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Flores, Paulo
Lecomte-Beckers, Jacqueline ;  Université de Liège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Habraken, Anne  ;  Université de Liège > Département ArGEnCo > Département ArGEnCo
Language :
English
Title :
FE modeling of the cooling and tempering steps of bimetallic rolling mill rolls
Publication date :
June 2017
Journal title :
International Journal of Material Forming
ISSN :
1960-6206
eISSN :
1960-6214
Publisher :
Springer
Volume :
Volume 10,
Issue :
Issue 3
Pages :
pp 287–305
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 March 2016

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