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Advanced High-Strength Steels: Processing and Characterization

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Metals and Alloys".

Deadline for manuscript submissions: 10 July 2026 | Viewed by 1619

Special Issue Editors


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Guest Editor
School of Materials Science and Engineering, Central South University, Changsha, China
Interests: high-strength steel; Ti alloy; Mg alloy; biomaterial; antibacterial metal; biodegradation; biocompatibility
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
Interests: high-strength steel; high-quality steel; martensitic aging steel; metal packaging materials

Special Issue Information

Dear Colleagues,

High-strength steels (AHSSs) have become pivotal materials in modern engineering, driving innovations across the automotive, aerospace, construction, and energy industries, among others. Their exceptional mechanical properties—such as their superior strength, ductility, and fatigue resistance—enable lightweight designs that meet stringent safety and sustainability requirements. To address evolving challenges in material performance, manufacturing efficiency, and environmental impact, this Special Issue of Materials invites researchers and engineers to contribute cutting-edge research on the preparation, processing, characterization, performance, and application of advanced high-strength steels.

This Special Issue aims to compile multidisciplinary studies that advance our understanding and application of AHSSs. Topics of interest include, but are not limited to, the following:

  • Material Design and Preparation: Novel alloy compositions, phase transformations, and innovative processing routes (e.g., additive manufacturing, thermo-mechanical treatments).
  • Processing Technologies: Advances in hot/cold deformation, additive manufacturing, welding, coating, and surface engineering that enhance performance and manufacturability.
  • Microstructural Characterization: State-of-the-art techniques for analyzing grain structure, precipitates, and phase evolution.
  • Mechanical and Functional Properties: Investigations into strength/plasticity/toughness/fatigue behavior, corrosion resistance, and specific functions.
  • Modeling and Simulation: Predictive models for microstructure–property relationship assessments, process optimization, and failure analysis.
  • Sustainability and Recycling: Strategies to improve energy efficiency, reduce carbon footprints, and promote circular economy practices in AHSS production.

This Special Issue offers researchers and engineers a platform on which to showcase breakthroughs in AHSS research, fostering collaboration between academia and industry. The published articles will highlight innovations that bridge the gap between theoretical advancements and real-world applications, addressing global demands for safer, lighter, and more sustainable materials.

Prof. Dr. Mingchun Zhao
Dr. Tianyi Zeng
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • high-strength steels
  • mechanical properties
  • microstructure
  • microstructure–property relationships
  • material design
  • processing technologies
  • functional properties

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Published Papers (2 papers)

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Research

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15 pages, 7394 KB  
Communication
Experimental Investigation of Delayed Fracture Initiation in Advanced High-Strength Steel Under Accelerated Bending
by Kyucheol Jeong, Jaewook Lee and Jonghun Yoon
Materials 2025, 18(14), 3415; https://doi.org/10.3390/ma18143415 - 21 Jul 2025
Viewed by 825
Abstract
Predicting bending fractures in advanced high-strength steel (AHSS) is challenging due to complex microstructural behaviors and strain rate dependencies, particularly in industrial forming processes. Current models and standards primarily focus on quasi-static tension or slow bending speeds, leaving a gap in understanding the [...] Read more.
Predicting bending fractures in advanced high-strength steel (AHSS) is challenging due to complex microstructural behaviors and strain rate dependencies, particularly in industrial forming processes. Current models and standards primarily focus on quasi-static tension or slow bending speeds, leaving a gap in understanding the accelerated failure of AHSS without necking. In this study, direct bending experiments were conducted on dual-phase, complex-phase, and martensitic AHSS grades under varying bending speeds and radii. Since the bending crack is irrelevant to the load drop, surface crack evolution was measured using three-dimensional surface profile analysis. The results showed that accelerated bending significantly delayed crack initiation across all tested materials, with small-radius bending showing reduced strain localization due to strain rate hardening. Larger-radius bending benefited primarily from increased fracture strain. Full article
(This article belongs to the Special Issue Advanced High-Strength Steels: Processing and Characterization)
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Review

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27 pages, 5090 KB  
Review
Advanced High-Strength Medium-Manganese Steels as an Alternative to Conventional Forging Steels: A Review
by Aleksandra Kozłowska and Anna Wojtacha
Materials 2026, 19(1), 109; https://doi.org/10.3390/ma19010109 - 28 Dec 2025
Viewed by 452
Abstract
This review highlights conventional forging steels and advanced medium-Mn steels containing retained austenite (RA), emphasizing their potential for industrial forging applications. Modern steels intended for forgings are required to combine strength, ductility, toughness and fatigue resistance with good hardenability and machinability at minimal [...] Read more.
This review highlights conventional forging steels and advanced medium-Mn steels containing retained austenite (RA), emphasizing their potential for industrial forging applications. Modern steels intended for forgings are required to combine strength, ductility, toughness and fatigue resistance with good hardenability and machinability at minimal cost. Medium-Mn multiphase steels fulfill these requirements by the strain-induced martensitic transformation (SIMT) of fine, lath-type RA, which can create a strength–ductility balance. Ferritic–austenitic steels provide high ductility with moderate strength, martensitic–austenitic steels show very high strength at the expense of ductility, and bainitic–austenitic steels achieve intermediate properties. Impact toughness and fatigue resistance are strongly influenced by the morphology of RA. The lath-type RA enhances energy absorption and delays crack initiation, while blocky RA may promote intergranular fracture. Low carbon (0.2–0.3 wt.%) combined with elevated manganese (3–7 wt.%) contents provides superior hardenability and machinability, enabling cost-effective air-hardening of components with various cross-sections. Advanced medium-Mn steels provide a superior mechanical performance and economically attractive solution for modern forgings, exceeding the limitations of conventional steel grades. Full article
(This article belongs to the Special Issue Advanced High-Strength Steels: Processing and Characterization)
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