| Issue |
MATEC Web Conf.
Volume 388, 2023
2023 RAPDASA-RobMech-PRASA-AMI Conference Advanced Manufacturing Beyond Borders - The 24th Annual International RAPDASA Conference joined by RobMech, PRASA and AMI, hosted by CSIR and CUT
|
|
|---|---|---|
| Article Number | 03010 | |
| Number of page(s) | 8 | |
| Section | Material Development | |
| DOI | https://doi.org/10.1051/matecconf/202338803010 | |
| Published online | 15 December 2023 | |
Evolution of microstructures in high and low Ti/Al ratio ferritic stainless steels after hot rolling
Department of Material Science and Metallurgical Engineering, University of Pretoria, South Africa
* Corresponding author: u20747226@tuks.co.za
The evolution of microstructures after hot rolling was studied on high and low Ti/Al ratio ferritic stainless steels. The steels were hot rolled using the Gleeble 1500D® thermomechanical simulation machine. The evolution of the microstructures was compared using the electron backscattered diffraction (EBSD) mode of scanning electron microscope (SEM) and optical microscopy (OM) methods by studying the grain sizes and recrystallization after hot rolling. The results showed that after hot rolling, the grain structure of the high Ti/Al ratio steel was more pancake like and smaller with high volume fraction of recrystallized grains. These recrystallised grains were mostly localised around TiNb(C,N) particles, which suggested particle stimulated nucleation (PSN) of grains. It was therefore seen that PSN occurred in both steels and therefore there was supposed fine grains and improved texture in both steels but the initial grain size prior to deformation overrides the effect of occurrence of PSN. Starting deformation with fine grained material yields higher recrystallization microstructures and textures.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.