Advanced High-Performance Steels: From Fundamental to Applications

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: 15 December 2025 | Viewed by 319

Special Issue Editors

Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China
Interests: alloys; rolling; mechanical properties; microstructure
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Guest Editor
School of Materials Science and Engineering, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
Interests: development of rare earth metal structural materials; research on long life of metal materials under extreme service conditions
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue highlights recent advancements in automotive steels, focusing on Advanced High-Strength Steels (AHSSs) and electrical steels for new energy vehicles (NEVs). AHSSs enable the manufacturing of lightweight, cost-effective components with enhanced safety and environmental performance, and their mechanical properties are governed by their phase composition, microstructure distribution, and metastable phase stability. Additionally, we emphasize critical developments in electrical steels for NEV applications, including high-efficiency non-oriented grades with optimized core loss, thin-gauge silicon steels for high-frequency motor operation, and novel processing techniques for enhancing magnetic properties while maintaining mechanical strength. This Special Issue also serves as a forum for researchers to interact with one another. We invite authors to submit original research articles as well as review articles focusing on novel developments in steel design and on new insights regarding processing–microstructure–property relationships in steels.

Topics that might be considered include, but are not limited to:

  1. Material design;
  2. Phase transformation;
  3. Microstructure characterization;
  4. Mechanical properties;
  5. Magnetic properties
  6. Computations and simulations;
  7. Texture analysis.

Dr. Zhengzhi Zhao
Prof. Dr. Zhigang Wang
Guest Editors

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Keywords

  • TRIP
  • TWIP
  • QP
  • TBF
  • DH
  • CH
  • deformation
  • phase transformations
  • hydrogen embrittlement
  • magnetic properties

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Published Papers (1 paper)

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Research

17 pages, 3854 KiB  
Article
Effect of Aluminum Content on Solidification Process and Microsegregation of δ-TRIP Steel
by Rudong Wang, Yanhui Sun and Heng Cui
Metals 2025, 15(6), 587; https://doi.org/10.3390/met15060587 - 25 May 2025
Viewed by 203
Abstract
As a third-generation advanced high-strength steel (AHSS), δ-TRIP steel exhibits the characteristics of high strength, high plasticity, and low density. However, the addition of Al to steel will affect solidification and segregation, which may impact the final microstructure and mechanical properties of the [...] Read more.
As a third-generation advanced high-strength steel (AHSS), δ-TRIP steel exhibits the characteristics of high strength, high plasticity, and low density. However, the addition of Al to steel will affect solidification and segregation, which may impact the final microstructure and mechanical properties of the product. In this study, thermodynamic calculations and microsegregation model analysis were employed to investigate the effects of Al addition on the solidification path, peritectic reaction range, equilibrium partition coefficients, and microsegregation behavior of δ-TRIP steel. The results show that with an increase in the Al content, the carbon content range in which δ ferrite is retained without complete transformation during the solid-state phase transition becomes broader. Simultaneously, the carbon concentration range of the peritectic zone expands. The segregation of the C, Si, Mn, P, and S elements increases with increasing Al content, whereas the segregation of Al decreases as the Al content increases. Under non-equilibrium solidification conditions, unlike equilibrium solidification, the temperature difference between the solid and liquid phases initially increases, then decreases, and subsequently levels off with further Al addition. This study provides information for the composition design and production process optimization of δ-TRIP steel, and the research results can provide a reference for similar high-aluminum, low-density steels. Full article
(This article belongs to the Special Issue Advanced High-Performance Steels: From Fundamental to Applications)
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