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author:

Li, Jiajie (Li, Jiajie.) [1] | He, Junshi (He, Junshi.) [2] | Deng, Liping (Deng, Liping.) [3] | Chen, Jingxian (Chen, Jingxian.) [4] | Wang, Chen (Wang, Chen.) [5] | Chen, Junfeng (Chen, Junfeng.) [6] | Xiao, Lei (Xiao, Lei.) [7] | Wang, Bingshu (Wang, Bingshu.) [8]

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Abstract:

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

Keyword:

Bearings (machine parts) Chromium alloys Chromium steel Dynamic mechanical analysis Dynamic recrystallization Hot isostatic pressing Metal extrusion Particle size analysis Powder metallurgy Steel metallurgy Textures

Community:

  • [ 1 ] [Li, Jiajie]School of Advanced Manufacturing, Fuzhou University, Fujian; 362200, China
  • [ 2 ] [He, Junshi]College of Materials Science and Engineering, Fuzhou University, Fujian; 350108, China
  • [ 3 ] [Deng, Liping]School of Mechanical Engineering and Automation, Fuzhou University, Fujian; 350108, China
  • [ 4 ] [Chen, Jingxian]College of Materials Science and Engineering, Fuzhou University, Fujian; 350108, China
  • [ 5 ] [Wang, Chen]College of Materials Science and Engineering, Fuzhou University, Fujian; 350108, China
  • [ 6 ] [Chen, Junfeng]College of Materials Science and Engineering, Fuzhou University, Fujian; 350108, China
  • [ 7 ] [Xiao, Lei]College of Materials Science and Engineering, Fuzhou University, Fujian; 350108, China
  • [ 8 ] [Wang, Bingshu]School of Advanced Manufacturing, Fuzhou University, Fujian; 362200, China
  • [ 9 ] [Wang, Bingshu]College of Materials Science and Engineering, Fuzhou University, Fujian; 350108, China

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Source :

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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30 Days PV: 0

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