Micro-laminated and ultrafine-grained dual-phase steel plates generated via intercritical rolling followed by water quenching

Shen, Xinjun; Tang, Shuai; Wang, G.D.; Zhang, Q.Y.; Wang, X.N.

doi:10.1016/j.jmapro.2021.08.035

Cited by 12 publications

(1 citation statement)

References 41 publications

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“…it is frequently reported, that increasing the surface area of the ferrite-martensite interface improves the ductility of DP steels by enhancing the deformation strengthening mechanism [9][10][11][12]. Therefore, a microstructure consisting of many fine, elongated islands of martensite is considered the most favourable, as it results in an increased ferrite-martensite interface area.…”

Section: Shaping the Dual Phase Microstructurementioning

confidence: 99%

Characteristic of DP600 Steel Produced in Hot Rolling Process

Kaźmierski,

Krawczyk,

Frocisz

2023

Archives of Metallurgy and Materials

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CharaCteristiC of DP600 steel ProDuCeD in hot rolling ProCess DP600 steels are characterized by a dual phase ferritic-martensitic microstructure, to which they owe their exceptionally favourable combination of high strength and good ductility. one of the production methods for this grade of steel is the hot rolling process. Despite the fact that these steels have been produced on an industrial scale for almost 40 years, they are still being studied intensively, with new research on the formation of their microstructure and properties published every year. This article focuses on the characteristics of DP600 steel produced on a hot rolling mill for applications in automotive industry. The article presents the results of mechanical properties tests and microstructure analysis of DP600 steel obtained in an industrial hot rolling process. The general characteristic of DP600 steel presented in this article, is supplemented with statistical analysis of correlations between chemical composition, selected process parameters and mechanical properties of hot rolled DP600 steel.

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Section: Shaping the Dual Phase Microstructurementioning

confidence: 99%

Characteristic of DP600 Steel Produced in Hot Rolling Process

Kaźmierski,

Krawczyk,

Frocisz

2023

Archives of Metallurgy and Materials

View full text Add to dashboard Cite

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Heterostructured Metallic Structural Materials: Research Methods, Properties, and Future Perspectives

Dong,

Gao,

Xiao

et al. 2024

Adv Funct Materials

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Heterostructured (HS) materials, characterized by heterogeneous zones with differences in mechanical or physical properties, represent a revolutionary advancement in material science. During deformation, hetero‐deformation‐induced (HDI) stress forms due to the synergistic interactions between soft and hard zones, leading to remarkable HDI strengthening and strain hardening. This mechanism significantly enhances their performance, surpassing that of traditional homogeneous materials. This review delves into the classification, preparation techniques, fundamental deformation mechanisms, and research methods of HS materials. It outlines the preparation methods of various HS materials, emphasizing their unique characteristics and applications. The review elaborates on the fundamental deformation mechanisms of HS materials, focusing on non‐uniform plastic deformation behavior and HDI strain hardening. Furthermore, it explores the application of heterogeneous design concepts in materials, analyzing their microstructure tuning mechanisms and mechanical properties. This review aims to serve as a critical reference for the future design and development of new HS metallic structural materials, paving the way for innovations that can transform multiple industries. By highlighting the long‐term impact, this review not only enhances the understanding of HS materials but also provides a roadmap for future research and industrial applications, positioning HS materials as key players in the advancement of material technology.

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Study on Strain Hardening and Cryogenic Toughness of Marine 10Ni5CrMoV Steel during Tempering

Zou,

Dong,

Jiang

et al. 2024

steel research int.

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The tempering process is applied in marine 10Ni5CrMoV steel to study microstructure, and mechanical properties by multi‐scale characterizations, strain hardening behavior, and cryogenic toughening mechanism are further investigated. As the tempering temperature increases from 590 to 630 °C, the dislocation density decreases by up to 25% and the austenite volume fraction decreases by up to 35%. Additionally, the morphology of austenite changes from strip to bulk, which weakened the pinning effect on the laths, leading to a coarsened martensite and an increase in the equivalent grain size. Based on the modified Crussard–Jaoul analysis, the specimens at different tempering temperatures exhibit a single‐stage strain hardening behavior during plastic deformation. The increase in strength is attributed to the continuous transformation‐induced plasticity effect and the increasing dislocation density. Furthermore, high austenite volume fraction and the proportion of grain boundary misorientation above 45° promote the release of stress concentration and hinder the propagation of cracks. This results in an increase in the ductile–brittle transition temperature (DBTT) of the specimens from −105 to −135 °C. At a tempering temperature of 610 °C, the specimen demonstrates an outstanding balance between yield strength (868 MPa) and cryogenic toughness (DBTT of −135 °C).

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Micro-laminated and ultrafine-grained dual-phase steel plates generated via intercritical rolling followed by water quenching

Cited by 12 publications

References 41 publications

Characteristic of DP600 Steel Produced in Hot Rolling Process

Characteristic of DP600 Steel Produced in Hot Rolling Process

Heterostructured Metallic Structural Materials: Research Methods, Properties, and Future Perspectives

Study on Strain Hardening and Cryogenic Toughness of Marine 10Ni5CrMoV Steel during Tempering

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