Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5454705 | Materials Characterization | 2017 | 21 Pages |
Abstract
This work focuses on the effect of a pre-heating stage on the microstructure evolution during continuous heating of 50% and 75% cold-rolled low carbon steel under conventional and ultrafast heating rates. Peak annealing experiments under two heating rates (10 °C/s and 400 °C/s) are applied to the samples after a pre-heating stage of 10 s. The selected pre-heating temperatures (300 °C and 400 °C) show an influence on the phase fraction of austenite formed after a short holding time in the intercritical (α + γ) phase field, and an effect on the intensity of recrystallized ferrite texture components. A refinement of ferritic average grain diameter is observed after increasing the heating rate from 10 °C/s to 400 °C/s. It is concluded that a pre-heating stage has a negligible impact on the microstructure and texture of cold-rolled low carbon steel. Therefore, a suitable technological window for the application of ultrafast heating rates in steel processing is enabled.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
F.M. Castro Cerda, C. Goulas, I. Sabirov, L.A.I. Kestens, R.H. Petrov,