Reference : The Developments of Cold-rolled TRIP-assisted Multiphase Steels. Al-alloyed TRIP-assi...
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/105172
The Developments of Cold-rolled TRIP-assisted Multiphase Steels. Al-alloyed TRIP-assisted Multiphase Steels
English
Jacques, Pascal J. [Université Catholique de Louvain - UCL > Département des sciences des matériaux et des procédés > > >]
Girault, Etienne [Katholieke Universiteit Leuven - KUL > Department of Metallurgy and Materials Engineering > > >]
Mertens, Anne mailto [Université Catholique de Louvain - UCL > Département des sciences des matériaux et des procédés > > >]
Verlinden, Bert [Katholieke Universiteit Leuven - KUL > Department of Metallurgy and Materials Engineering > > >]
van Humbeeck, Jan [Katholieke Universiteit Leuven - KUL > Department of Metallurgy and Materials Engineering > > >]
Delannay, Francis [Université Catholique de Louvain - UCL > Département des sciences des matériaux et des procédés > > >]
2001
ISIJ International
Inron and Steel Institute of Japan
41
9
1068-1074
Yes (verified by ORBi)
International
0915-1559
1347-5460
Tokyo
Japon
[en] high strength steels ; retained austenite ; TRIP and multiphase steels ; bainite transformation ; mechanical properties
[en] The influence of heat-treating conditions on the retention of carbon-enriched austenite of TRIP-assisted multiphase steel grades containing different amounts of silicon and/or aluminium is investigated. The ensuing mechanical properties resulting from the TRIP effect are also scrutinised. The bainite transformation kinetics was followed by dilatometry whereas a detailed characterisation of the microstructures led to the construction off transformation maps giving the volume fractions of the different phases and the carbon content of the austenite. The role of silicon and aluminium additions (i)on the retention of austenite by partial bainite transformation and (ii) on the mechanical properties is enlightened. A strong influence of the solid-solution strengthening effect of silicon is highlighted. Aluminium seems to be an effective alloying element for the retention of austenite in TRIP-aided steels even if lower strength levels can be attained. A mixed Al-Si TRIP-aided steel seems to be a very good compromise between the processing needs, the required mechanical properties and the industrial constraints.
Researchers ; Professionals
http://hdl.handle.net/2268/105172

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