| Issue |
MATEC Web Conf.
Volume 417, 2025
2025 RAPDASA-RobMech-PRASA-AMI Conference: Bridging the Gap between Industry & Academia - The 26th Annual International RAPDASA Conference, joined by RobMech, PRASA and AMI, co-hosted by CSIR and Tshwane University of Technology, Pretoria
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| Article Number | 03015 | |
| Number of page(s) | 12 | |
| Section | Materials Engineering | |
| DOI | https://doi.org/10.1051/matecconf/202541703015 | |
| Published online | 25 November 2025 | |
Tailoring dual-phase steel properties through controlled temperature and holding time during heat treatment
Centre for Nanoengineering and Advanced Materials, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, Johannesburg 2092, South Africa.
This study investigates the effect of controlled temperature and holding time on the microstructure and properties of DP600 dual-phase steel. Low-carbon steel (0.3 wt%C) was heat-treated at 850°C with holding times of 20, 40, 60, and 80 minutes, followed by quenching in bitumen. The microstructure revealed variations in ferrite-martensite dispersion with increasing holding time. Improved mechanical properties were observed due to microstructural evolution, while corrosion resistance decreased with prolonged exposure. The findings highlight the critical role of heat treatment parameters in optimizing dual-phase steel properties for engineering applications.
© The Authors, published by EDP Sciences, 2025
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