Rev. Met. Paris
Volume 105, Number 10, October 2008Steelmaking
|Page(s)||520 - 530|
|Published online||18 October 2008|
Development of hot rolled copper/nickel alloyed TRIP steels with carbide-free bainitic matrix
The targeted carbide-free bainitic TRIP microstructure have been obtained in the studied steels thanks to a specific alloy-design, following a classical hot-rolling schedule followed with a fast cooling regime and a coiling stage. Excellent balance between tensile strength and ductility are achieved and explained by transformation hardening phenomena. The sharp influence of gamma stabilizing elements (copper/nickel/manganese) on phase transformations and mechanical properties is highlighted.
© La Revue de Métallurgie, 2008
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