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<p>This work presents a theoretical and experimental study for the development of dual phase steels from modification of chemical composition of a commercial AISI-1010 low carbon steel. A computational study of the effects of chemical composition on the behavior of continuous cooling transformation diagrams was conducted to propose an appropriate chemical composition for experimental steel. To validate the results obtained, a steel was fabricated at laboratory scale and processed by hot rolling to obtain thin steel strips, to further investigate the effects of steel thickness (2.0 and 1.5&#xa0;mm), annealing conditions (1 to 10&#xa0;min, 790 and 815&#xa0;°C) and cooling media (water and brine) on the microstructure and hardness. Results show that the proposed methodology allows obtaining microstructures consisting mainly of ferrite and martensite. The amount of martensite varies from less than 50% up to 62.50%, while the hardness ranges between 235 and 377 HV.</p> Graphical abstract <p></p>

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Computational design based on CCT diagrams and experimental validation of dual-phase steel strips from commercial low-carbon steel

  • 期刊论文

  • 发表日期：

    2026年4月29日

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  • E. Cantú Moreno,
  • M. Z. Saavedra Leos,
  • M. J. Soria Aguilar,
  • F. R. Carrillo Pedroza,
  • F. Hernández Navarro,
  • A. Bedolla Jacuinde,
  • J. García Guerra,
  • A. Salinas Rodríguez,
  • E. J. Gutiérrez Castañeda

摘要

This work presents a theoretical and experimental study for the development of dual phase steels from modification of chemical composition of a commercial AISI-1010 low carbon steel. A computational study of the effects of chemical composition on the behavior of continuous cooling transformation diagrams was conducted to propose an appropriate chemical composition for experimental steel. To validate the results obtained, a steel was fabricated at laboratory scale and processed by hot rolling to obtain thin steel strips, to further investigate the effects of steel thickness (2.0 and 1.5 mm), annealing conditions (1 to 10 min, 790 and 815 °C) and cooling media (water and brine) on the microstructure and hardness. Results show that the proposed methodology allows obtaining microstructures consisting mainly of ferrite and martensite. The amount of martensite varies from less than 50% up to 62.50%, while the hardness ranges between 235 and 377 HV.

Graphical abstract