Assurring microstructural homogeniety in dual phase and trip steels
Assurring microstructural homogeniety in dual phase and trip steels
The presence of ferrite/pearlite bands in dual phase and TRIP assisted steels is a consequence of micro-chemical segregation which causes mechanical properties anisotropy. Such inhomogeneous phase distribution produces a lowering of the mechanical properties such as fracture behaviour. This anisotropy is commoly not accounted in micromechanics computation which often assume a random distribution of phases in the solid. The present paper deals with an integral model for this undesirable band formation accounting for the solute segregation caused by solidification, microcomponent diffusion present in the austenitisation process, and the nucleation of the transformed phase in segregated regions. In the present work, the model was applied to two industrial grade dual phase steels and two TRIP assisted steels. The influence of such parameters on band formation is summarised in a number of "band prevention plots", which are aimed at providing the optimum processing conditions for ferrite/pearlite band prevention.
Banding, toughening, Ferrite, Modelling, Pearlite, Steel, TRIP
261-265
Rivera-Díaz-Del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
van der Zwaag, S.
ad11f134-8a43-4635-9feb-7c3d01158f4b
2004
Rivera-Díaz-Del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
van der Zwaag, S.
ad11f134-8a43-4635-9feb-7c3d01158f4b
Rivera-Díaz-Del-Castillo, P.E.J. and van der Zwaag, S.
(2004)
Assurring microstructural homogeniety in dual phase and trip steels.
Sih, G.C., Kermanidis, T.B. and Pantelakis, S.G.
(eds.)
In Multiscaling in Applied Science and Emerging Technology; Fundamentals and Applications in Mesomechanics: Proceedings of the Sixth International Conference for Mesomechanics.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The presence of ferrite/pearlite bands in dual phase and TRIP assisted steels is a consequence of micro-chemical segregation which causes mechanical properties anisotropy. Such inhomogeneous phase distribution produces a lowering of the mechanical properties such as fracture behaviour. This anisotropy is commoly not accounted in micromechanics computation which often assume a random distribution of phases in the solid. The present paper deals with an integral model for this undesirable band formation accounting for the solute segregation caused by solidification, microcomponent diffusion present in the austenitisation process, and the nucleation of the transformed phase in segregated regions. In the present work, the model was applied to two industrial grade dual phase steels and two TRIP assisted steels. The influence of such parameters on band formation is summarised in a number of "band prevention plots", which are aimed at providing the optimum processing conditions for ferrite/pearlite band prevention.
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Published date: 2004
Venue - Dates:
Multiscaling in Applied Science and Emerging Technology; Fundamentals and Applications in Mesomechanics: the Sixth International Conference for Mesomechanics, , Patras, Greece, 2004-05-31 - 2004-06-04
Keywords:
Banding, toughening, Ferrite, Modelling, Pearlite, Steel, TRIP
Identifiers
Local EPrints ID: 492386
URI: http://eprints.soton.ac.uk/id/eprint/492386
PURE UUID: 5cdff2b4-2e10-4471-b8ca-4b701b91beec
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Date deposited: 25 Jul 2024 16:50
Last modified: 26 Jul 2024 02:09
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Contributors
Author:
P.E.J. Rivera-Díaz-Del-Castillo
Author:
S. van der Zwaag
Editor:
G.C. Sih
Editor:
T.B. Kermanidis
Editor:
S.G. Pantelakis
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