Influence of Manganese Content on Microstructure, Mechanical Properties and High Temperature Oxidation Resistance of Reduced Activation Ferritic/Martensitic Steels

Zeng, Wen; Zhou, Ming; Yang, Mujie; Qiu, Risheng; Tan, Xinu; Anruo, Zhou; Luo, Xianfu

doi:10.1007/s11665-023-07831-7

Cited by 3 publications

(1 citation statement)

References 37 publications

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“…Tianyuan Wang et al [14] found that Si makes the oxide layer flat and reduces spalling, which improves the antioxidant performance at 800 • C more than five times. Wen Zeng et al [15] studied the antioxidant properties of steel with different Mn contents and found that the composite oxide MnCr 2 O 4 enhanced antioxidant properties. However, a high Mn content leads to a decreased critical concentration of Cr to form Cr 2 O 3 , which deteriorates antioxidant properties.…”

Section: Introductionmentioning

confidence: 99%

Studying the Effect of Cr and Si on the High-Temperature Oxidation-Resistance Mechanism of Hot Stamping Steel

Wu,

Zhang,

Zhu

et al. 2023

Metals

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The surface of hot stamping steel is severely oxidized during heating, holding, and transfer from the heating furnace to the stamping die in the production of traditional automotive parts. Coating-free hot stamping steel with Cr and Si elements exhibits excellent oxidation resistance during hot stamping without the protection of a surface coating. This paper investigates the oxidation behavior of three types of hot stamping steel at 800–1200 °C. The results show that although Cr-Si hot stamping steel performs excellently short-term (≤7.5 min) for oxidation resistance, its long-term (≥15 min) or high-temperature (≥1100 °C) oxidation resistance is much lower than that of the conventional hot stamping steel 22MnB5, affecting the production and surface quality control of the new coating-free Cr-Si hot stamping steel. By analyzing the oxidation kinetics and characterizing the structure of oxide layers in hot stamping steel, it was found that the structural change in the Cr and Si element enrichment layer between the oxide scale and the substrate varied in oxidation performance at different temperatures. When the oxidation temperature was below 1000 °C, the solid Cr and Si enrichment layer acted as a barrier to prevent the diffusion of Fe ions. When the oxidation temperature exceeded 1100 °C, the molten Cr and Si enrichment layer effectively adapted to the substrate and avoided blistering. Meanwhile, Fe2SiO4 penetrated the Fe oxide layer along the grain boundary and became a rapidly diffusing channel of Fe ions, contributing to a significant increase in the oxidation rate.

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Section: Introductionmentioning

confidence: 99%

Studying the Effect of Cr and Si on the High-Temperature Oxidation-Resistance Mechanism of Hot Stamping Steel

Wu,

Zhang,

Zhu

et al. 2023

Metals

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Ferritic–Martensitic Steels in Power Industry: Microstructure, Degradation Mechanism, and Strengthening Methods

Jiang,

Huang,

Feng

et al. 2024

steel research int.

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Ferritic–martensitic (F–M) steels are widely used for high‐temperature pressure vessels and reactor cladding structures in power plants. The high operating temperatures and pressures, as well as the radiation environment, significantly challenge the mechanical stability of these steels. Here, the degradation mechanisms in F–M steels during creep and thermal aging under these harsh environments are reviewed. The exceptional mechanical properties of F–M steels are mainly attributed to their well‐constructed microstructures and chemical compositions. Microstructural barriers such as dislocations, solid solution atoms, and precipitates play key roles in resisting degradation. During the long‐term service, the microstructures undergo gradual evolution, resulting in a deterioration of mechanical properties at the macrolevel. In addition to the degradation mechanisms, some recent advancements in strengthening methods, including microalloying strengthening, thermomechanical treatment (TMT), and oxide dispersion strengthening, are summarized, aimed at the development of next‐generation F–M steels. The strengthening of the F–M steels is mainly achieved by enhancing the thermal stability of their microstructures. Insight into both the deterioration mechanisms and strengthening methods of F–M steels may pave the way for new approaches in developing high‐performance steels for applications in next‐generation power plants operating at ultrahigh operating temperatures and pressures.

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Effects of Zr content on microstructure and properties of 9Cr ferritic/martensitic steel

Zeng,

Qiu,

Zhou

et al. 2024

Nuclear Engineering and Design

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Influence of Manganese Content on Microstructure, Mechanical Properties and High Temperature Oxidation Resistance of Reduced Activation Ferritic/Martensitic Steels

Cited by 3 publications

References 37 publications

Studying the Effect of Cr and Si on the High-Temperature Oxidation-Resistance Mechanism of Hot Stamping Steel

Studying the Effect of Cr and Si on the High-Temperature Oxidation-Resistance Mechanism of Hot Stamping Steel

Ferritic–Martensitic Steels in Power Industry: Microstructure, Degradation Mechanism, and Strengthening Methods

Effects of Zr content on microstructure and properties of 9Cr ferritic/martensitic steel

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