Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.8
3.1
Journals
Materials
Special Issues
Advanced High-Strength Steels (AHSS) Prepared as Bulk and Powder Metal
materials-logo
Submit to Special Issue Submit Abstract to Special Issue Review for Materials Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Advanced High-Strength Steels (AHSS) Prepared as Bulk and Powder Metal

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

Deadline for manuscript submissions: 20 July 2025 | Viewed by 3139

Special Issue Editor

Prof. Dr. Tibor Kvačkaj

E-Mail Website
Guest Editor
Bodva Industry and Innovation Cluster (BIIC), Budulov 174,04501 Moldava nad Bodvou, Kosice, Slovakia
Interests: plastic deformation; materials properties; microstructures; ultrafine-grained structures; nanostructures; additive manufacturing; cryorolling
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Advanced High Strength Steels (AHSS) are characterized by selected chemical composition, final microstructures, and physical properties that can be formed in bulk or powdered steel materials.

The steel properties in bulk form are formed via a controlled process of heating and plastic deformations in austenitic regions, with the possibility of continuing deformations in the dual phase region (γ + α), followed by controlled cooling. The processes of recrystallization, precipitation, and phase transformations are controlled by time-dependent thermal-deformation regimes, which influence the final mechanical properties.

Nowadays, trends in production are directed towards creating products by methods enabling the achievement of shapes and geometric dimensions near the final product using additive manufacturing (AM) techniques for steels prepared by powder metallurgy.

To increase the mechanical properties and minimize the density of the PM material, plastic deformations realized as SPD techniques (severe plastic deformation) or deformations realized in cryogenic temperatures with the possibility of heat treatment are used as post-processing techniques after AM. The accumulation of these techniques controls the processes of recrystallization, precipitation, and phase transformations, as well as the strengthening contributions to yield strength and optimization of plastic properties.

The yield strength, tensile strength, and area reduction depend on the control of the strengthening contributions (grain size refinement, precipitation strengthening, dislocation strengthening, and transformation strengthening).

This Special Issue aims to present the latest works in the research and development of AHSS steels. We invite you to submit a manuscript to this Special Issue. Full papers, communications, and reviews are welcome for submission.

Potential topics include, but are not limited to:

(a) Materials base: AHSS steels prepared in bulk and PM form (introduction and characterization);

(b) Experimental techniques: controlled rolling and cooling, additive manufacturing, SPD techniques, plastic deformations at cryogenic temperatures, and heat treatment;

(c) Strengthening mechanisms to increase mechanical properties;

(d) New trends to increase mechanical properties;

(e) Application of AHSS.

Prof. Dr. Tibor Kvačkaj
Guest Editor

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 100 words) can be sent to the Editorial Office for announcement on this website.

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

  • AHSS
  • recrystallization
  • precipitation
  • phase transformation
  • structures with dimensions at the level of micro and nano size
  • grain size dimensions
  • mechanical properties
  • plastic deformations
  • deep drawing
  • additive manufacturing
  • SPD techniques
  • heat treatment

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (4 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

17 pages, 5806 KiB  
Article
Investigation of the Effect of the Shape of Cutting Knives Limiting Burr in High-Strength Multiphase Steel Sheets
by Sebastian Mróz, Andrzej Stefanik, Piotr Szota, Sabina Galusińska, Dariusz Zaława, Andrzej Adamiec and Natalia Zaława
Materials 2025, 18(2), 282; https://doi.org/10.3390/ma18020282 - 10 Jan 2025
Viewed by 496
Abstract
In this study, numerical modeling and experimental tests of the sheet metal cutting process were carried out in order to determine the shape of the cutting knives for a roller shear, ensuring the minimization of burr on the cut edge. A rolling mill [...] Read more.
In this study, numerical modeling and experimental tests of the sheet metal cutting process were carried out in order to determine the shape of the cutting knives for a roller shear, ensuring the minimization of burr on the cut edge. A rolling mill was used for the tests, enabling the replication of the cutting process in a roller shear (demonstrating the possibility of using cutting rollers). The cutting edges of the sheets were examined using light microscopy and then compared with the results of numerical simulations to determine the cutting quality. The tests were performed for multiphase Complex Phase (CP) grade steel. The initial thicknesses of sheets were equal to 1 and 2 mm. Based on the results of theoretical research, four shapes of cutting rollers were designed, of which two shapes were selected for experimental tests. The analysis of the test results shows that the lowest burr values were obtained for straight and beveled rollers. Analyzing the size of burr obtained in experimental tests, it can be concluded that for each of the two variants of the roller shape, a reduction in burr was achieved. Greater reductions in burr were achieved for shaped (cut) rolls. Full article
(This article belongs to the Special Issue Advanced High-Strength Steels (AHSS) Prepared as Bulk and Powder Metal)
►▼ Show Figures

Figure 1

14 pages, 7079 KiB  
Article
Strain Rate Sensitivity of Low Carbon Threaded Steel Rods of Grade 4.6
by Jovan Trajkovski and Robert Kunc
Materials 2024, 17(24), 6228; https://doi.org/10.3390/ma17246228 - 20 Dec 2024
Viewed by 488
Abstract
Bolt connections are widely used in construction and engineering to securely join structural elements. These connections are essential for distributing loads across components and ensuring that structures can withstand external forces. The planned failure of these bolts is of great importance in steel [...] Read more.
Bolt connections are widely used in construction and engineering to securely join structural elements. These connections are essential for distributing loads across components and ensuring that structures can withstand external forces. The planned failure of these bolts is of great importance in steel safety barriers (SSBs), as it can directly influence the height of the guardrail and the working width of the SSB during the vehicle impact, which consequently affects the crash consequences. Therefore, it is of great importance to determine the bolt response until fractures under different strain rates. For that purpose, experimental tensile tests of low-strength steel rods of grade 4.6 were conducted at various strain rates (0.0025–25 s−1) until fracture. Test specimens were photographed during the testing, and by means of image processing, input data for calculation of true stresses and strains up to the point of fracture were extracted. Based on the experimental data, material parameters were determined for the Cowper–Symonds model, enabling precise numerical simulations of these connections at various strain rates. A validation study was also performed successfully. Full article
(This article belongs to the Special Issue Advanced High-Strength Steels (AHSS) Prepared as Bulk and Powder Metal)
►▼ Show Figures

Figure 1

17 pages, 15080 KiB  
Article
Increasing the Strength and Impact Toughness of Carbon Steel Using a Nanosized Eutectoid Resulting from Time-Controlled Quenching
by Michail Brykov, Dariusz Mierzwiński, Vasily Efremenko, Vasyl’ Girzhon, Vadim Shalomeev, Oleksandr V. Shyrokov, Ivan Petryshynets, Olexandr Klymov and Oleksii Kapustyan
Materials 2024, 17(15), 3696; https://doi.org/10.3390/ma17153696 - 26 Jul 2024
Viewed by 1072
Abstract
High-carbon steels are normally used as tool materials. The use of such steels for construction is limited due to their increased brittleness and poor weldability. However, it appears that high-carbon steels possess certain hidden reserves for enhanced plasticity and strength if properly heat-treated. [...] Read more.
High-carbon steels are normally used as tool materials. The use of such steels for construction is limited due to their increased brittleness and poor weldability. However, it appears that high-carbon steels possess certain hidden reserves for enhanced plasticity and strength if properly heat-treated. An unconventional heat treatment was applied to carbon eutectoid steel (0.8 wt.% C) in order to increase its strength and impact toughness simultaneously. Samples for tensile and impact testing were held at 800 °C for different time ranges from 3 min to 9 min with subsequent cooling in oil. It was established that for each type of sample, an optimal holding time exists that is responsible for increased strength and high impact toughness. The hardness and microhardness levels of the surface and under-surface regions of the samples reached 390 HV after optimal heat treatment. An X-ray revealed a shift of the (211)α-peak to the lower 2-theta angles after heat treatment with the optimal holding time; this indicates an increase in carbon content in alpha solid solutions of approximately 0.12 wt.%. Thus, a nanostructured mixture of low-carbon martensite and thin cementite plates is formed in the under-surface region of carbon eutectoid steel after heat treatment, with a controlled holding time at the austenitizing temperature. Full article
(This article belongs to the Special Issue Advanced High-Strength Steels (AHSS) Prepared as Bulk and Powder Metal)
►▼ Show Figures

Figure 1

Review

Jump to: Research

24 pages, 4389 KiB  
Review
Mechanical Properties and Strengthening Contributions of AISI 316 LN Austenitic Stainless Steel Grade
by Tibor Kvackaj, Jana Bidulská, Alica Fedoríková and Róbert Bidulský
Materials 2025, 18(3), 499; https://doi.org/10.3390/ma18030499 - 22 Jan 2025
Viewed by 553
Abstract
The main goal of this contribution is to evaluate the mechanical properties, strengthening contributions and microstructure development of austenitic stainless steel AISI 316 LN with high nitrogen content in the states characterized as the initial state and the states after rolling with different [...] Read more.
The main goal of this contribution is to evaluate the mechanical properties, strengthening contributions and microstructure development of austenitic stainless steel AISI 316 LN with high nitrogen content in the states characterized as the initial state and the states after rolling with different thickness deformations. The initial state was represented by solution annealing (777 K/60 min). The deformation state was characterized by rolling thickness reductions carried out at ambient temperature (TA = 295 K) with deformations in the range ε ∈ (0; 50> [%]. Studies of microstructures, mechanical properties and strengthening contributions before and after rolling were carried out. The initial state after solution annealing was as follows: offset yield strength Rp0.2 = 325 MPa, elongation A5 = 49% and diameter of grain size d = 214 μm. The state after ambient rolling with thickness deformation ε = 50% was as follows: Rp0.2 = 994 MPa, A5 = 4% and d = 64 μm. The maximum contribution to strengthening after rolling processing with 50% thickness deformation was dislocations (∆ R P0.2_DS = 560 MPa) followed by twins (∆ R P0.2_DT =140 MPa). Full article
(This article belongs to the Special Issue Advanced High-Strength Steels (AHSS) Prepared as Bulk and Powder Metal)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-4
Back to TopTop