Development of Advanced High-Strength Steels
A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Casting, Forming and Heat Treatment".
Deadline for manuscript submissions: 15 January 2025 | Viewed by 5352
Special Issue Editors
Interests: ausforming and transformation kinetics in advanced high-strength bainite steels; microstructure and property control of ultra-high strength steels
Special Issues, Collections and Topics in MDPI journals
Interests: steel; microalloyed
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
The automobile and mechanical engineering industries are continuously challenged to reduce weight and improve fuel efficiency due to economic and environmental requirements. For this purpose, advanced high-strength steels (AHSS) are popular, such as quenching and partitioning (Q&P), medium Mn transformation-induced plasticity (TRIP), TRIP-aided bainitic ferrite (ABF) steels, etc. AHSSs are commonly designed with the addition of various alloying elements to achieve a favorable combination of strength and toughness. Via hot rolling, heat treatment, ausfroming, etc., the phase transformation and microstructure can be optimized, including how to refine hard matrix and how to tailored the retained austenite, which can contribute to an excellent combination of strength, ductility and toughness. The metastable phase (retained austenite) plays a significant role in improving the strength and elongation. Thus, many efforts have been made to modify the amount, morphology, distribution and mechanical stabilization of the retained austenite. In addition, low-temperature transformation is normally adopted to fabricate advanced high-strength steels, thus leading to slow transformation kinetics, especially for high-carbon and high-alloy cases, which represents a barrier for industrial application.
Technological research is still needed for the implementation of advanced high-strength steels, especially considering the performance and production cycle. Fundamental studies on phase transformation, microstructure, ausforming and mechanical properties will guide the development of advanced high-strength steels. The topics addressed in this Special Issue may include, but are not limited to, advanced high strength steels, novel heat treatment processes, new methods to tailor retained austenite, mechanical performance and fatigue behavior.
Dr. Haijiang Hu
Dr. Junyu Tian
Guest Editors
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Keywords
- transformation
- microstructure
- property
- hot rolling
- ausforming
- heat treatment
- high strength
- microstructural characterization
- mechanical performance
- martensite
- bainite
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