Article ID Journal Published Year Pages File Type
1630404 Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material 2008 6 Pages PDF
Abstract
By careful design of rolling schedule, ultra-fine (∼2 μm) ferrite grains in a low carbon high niobium (0.09wt%Nb) micro-alloying steel with average austenite grain sizes above 800 μm can be achieved in the simulated thin slab direct rolling process. The 5-pass deformation was divided into two stages: the refinement of austenite through complete recrystallization and the refinement of ferrite through dynamic strain-induced transformation. The effects of Nb in solution and strain-induced NbCN precipitates on the ferrite transformation were also extensively discussed.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
Authors
, , , ,