materials-logo

Journal Browser

Journal Browser

Developments of Steels and Alloys for Structural and Functional Applications

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

Deadline for manuscript submissions: closed (20 November 2023) | Viewed by 3818

Special Issue Editors


E-Mail Website
Guest Editor
Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, A. Mickiewicza Av. 30, 30-059 Krakow, Poland
Interests: residual stresses; high-entropy alloys; X-ray diffraction; synchrotron X-ray diffraction; X-ray scattering; microstructure; material characterization

E-Mail Website
Guest Editor
LASMIS, Université de Technologie de Troyes (UTT), 12 Rue Marie Curie, 10010 Troyes, France
Interests: neutron diffraction; speckle interferometry; tensile test; steel; micromechanics; X-ray diffraction; multiscale modeling; neutron scattering; crystallography; material characterization; synchrotron X-ray diffraction; mechanical properties; mechanical behavior of materials; mechanical testing; metals; fracture; mechanics; plasticity

Special Issue Information

Dear Colleagues,

Steel and its alloys form the largest group of engineering materials. Their desirable mechanical and physical properties are their principal attributes. Modern construction must meet the function for which it has been made and be safe and cost-effective to maintain. To accomplish the above, a structure's design should seek the best possible solution. Such a design is usually based on the optimal material mechanical, physical, and chemical parameters. In order to select the optimal material for the manufacture of structural elements, it is necessary to have data on the behavior of the material in different conditions. This Special Issue will focus on experimental research and analysis of steel, and in particular, the topics will touch on not only experimental findings, but also microstructural and mechanical investigations, surface properties, numerical approaches, and analytical models for mechanical behavior.

Dr. Marianna Marciszko-Wiąckowska
Dr. Léa Le Joncour
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 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

  • steel
  • microstructure
  • mechanical properties
  • numerical approach
  • mechanical strength
  • residual stress

Published Papers (3 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

17 pages, 10720 KiB  
Article
Kinetics of Intermetallic Phase Precipitation in Manual Metal Arc Welded Duplex Stainless Steels
by Monika Orłowska, Krzysztof Pańcikiewicz, Aleksandra Świerczyńska and Michał Landowski
Materials 2023, 16(24), 7628; https://doi.org/10.3390/ma16247628 - 13 Dec 2023
Viewed by 843
Abstract
The article presents the influence of heat treatment on the kinetics of transformations in lean duplex LDX2101 steel and a weld made of standard duplex 2209 material, which was welded by manual metal arc welding. Changes in the microstructure, hardness, and magnetic phase [...] Read more.
The article presents the influence of heat treatment on the kinetics of transformations in lean duplex LDX2101 steel and a weld made of standard duplex 2209 material, which was welded by manual metal arc welding. Changes in the microstructure, hardness, and magnetic phase content were analyzed after heat treatment was conducted at a temperature of 800 °C for a period ranging from 15 to 1440 min. Light and scanning microscopy, Vickers hardness measurements, and magnetic phase content measurements using a ferritoscope were used for the research. In the LDX2101 steel, the presence of δ-ferrite and γ austenite was identified and additional Cr2N nitrides were observed in the heat-affected zone. After heat treatment, the decomposition of δ ferrite into γ2 austenite and Cr2N nitrides was observed in both areas. In the case of weld made by the coated electrode in 2209 grade, a ferritic–austenitic microstructure with allotriomorphic austenite (γA), Widmanstätten austenite (γW), and idiomorphic austenite (γI) and δ-ferrite area with “bee swarms” of fine precipitations of chromium nitrides Cr2N and non-metallic inclusions (NMIs) of slag, formed during the welding process, are observed in the as-welded state. After heat treatment, the presence of the χ phase (after 15 min of annealing) and the σ phase (after 120 min of annealing) was additionally identified. The kinetics of intermetallic phase evolution in welds made from 2209 material were presented. The obtained results of hardness measurements and metallographic tests were correlated, which allowed for a quick check of the precipitation processes on the used element. Full article
Show Figures

Figure 1

18 pages, 8199 KiB  
Article
Study on Flexural Performance of Aluminum Alloy Gusset Joints Subjected to Bending Moment and Shear Force
by Hao Wang, Jialiang Li, Pengcheng Li, Li Zhong, Xiaoyue Zhang and Chao Li
Materials 2023, 16(7), 2920; https://doi.org/10.3390/ma16072920 - 06 Apr 2023
Cited by 2 | Viewed by 1268
Abstract
Aluminum alloy gusset (AAG) joints are widely applied in space reticulated shell structures. To investigate the flexural performance of AAG joints under the combined action of shear force and in-plane and out-of-plane bending moments, this analysis was developed by means of finite element [...] Read more.
Aluminum alloy gusset (AAG) joints are widely applied in space reticulated shell structures. To investigate the flexural performance of AAG joints under the combined action of shear force and in-plane and out-of-plane bending moments, this analysis was developed by means of finite element (FE) models implemented in the non-linear code ABAQUS, and the accuracy of the FE simulation results based on the existing AAG joint test results was verified. The FE simulation results effectively described the mechanical properties of the AAG joints, including the failure mode, deformation process and bending moment-rotation curves. Furthermore, a parametric study was conducted by varying the height of the member section, the number of bolts, the radius of the joint plate, the thickness of the joint plate, the bolt preload force, and the ratio of in-plane to out-of-plane bending moments. It was found that these parameters had different effects on the bending behavior of the AAG joints. Full article
Show Figures

Figure 1

16 pages, 6517 KiB  
Article
Investigation of the Thermodynamic Transformation and Rare Earth Microalloying of a Medium Carbon-Medium Alloy Steel for Large Ball Mill Liners
by Xi Yang, Xinghe Wang, Jingpei Xie, Yuhe Li and Dixin Yang
Materials 2022, 15(13), 4448; https://doi.org/10.3390/ma15134448 - 24 Jun 2022
Viewed by 1319
Abstract
The medium carbon-medium alloy steel was developed for the manufacture of large ball mill liners and sports equipment. In this study, the continuous cooling transformation curve of a novel type of medium carbon-medium alloy steel was measured with a thermal simulation machine; based [...] Read more.
The medium carbon-medium alloy steel was developed for the manufacture of large ball mill liners and sports equipment. In this study, the continuous cooling transformation curve of a novel type of medium carbon-medium alloy steel was measured with a thermal simulation machine; based on this curve, the hardening and tempering processes were optimized. The steel was then complex modified with alkaline earth and rare earth alloys. The mechanical properties of the treated steel were tested. The microstructure of the steel was analyzed by metallographic microscopy, X-ray diffraction, scanning electron microscopy and transmission electron microscopy, and the wear surface of the steel was analyzed by a three-dimensional morphometer. After high-temperature tempering, the microstructure transformed into tempered sorbite, which possesses good mechanical properties and can adapt to working conditions that require high strength and toughness. Rare earth or alkaline earth modification of the medium carbon-medium alloy steel promoted microstructural uniformity and grain refinement and improved the mechanical and anti-wear properties. Full article
Show Figures

Figure 1

Back to TopTop