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Conventional preparation methods, such as spark plasma sintering (SPS), hot isostatic pressing (HIP), and hot extrusion (HEX), are recognized for their high cost and complexity, which constitutes a major obstacle to the widespread industrial application of ODS steels. In this study, a new liquid metal (LM) strategy is adopted, and the effect of hot rolling on the microstructure, texture, and mechanical properties of 12Cr-ODS steels processed by the LM strategy is systematically investigated using a characterization approach dominated by electron back-scatter diffraction (EBSD) analysis. Surprisingly, the product of strength and elongation (PSE) of ODS steel can be improved to exceed 40 GPa·% by combining the LM strategy with hot rolling, which is difficult to achieve with the conventional powder metallurgy (PM) method. The strengthening of the LM-ODS steel involves the control of the volume fraction of martensite, the evolution of Y-bearing particles, and dynamic recrystallization (DRX), which is accompanied by texture evolution and a decrease in grain size. The strategy can provide theoretical guidance for industrial-scale manufacturing of high-performance and low-cost ODS steels, further accelerating the adoption of ODS steels. © 2025 Elsevier Ltd
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Materials Today Communications
Year: 2025
Volume: 48
3 . 7 0 0
JCR@2023
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ESI Highly Cited Papers on the List: 0 Unfold All
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