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Metals
Special Issues
Metal Plastic Deformation and Forming
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Metal Plastic Deformation and Forming

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Casting, Forming and Heat Treatment".

Deadline for manuscript submissions: 20 October 2024 | Viewed by 2528

Special Issue Editor

Prof. Dr. Junting Luo

E-Mail Website
Guest Editor
Education Ministry Key Laboratory of Advanced Forging & Stamping Technology and Science, Yanshan University, Qinhuangdao, 066004, China
Interests: plastic processing technology; special forming and quality control; finite element simulation

Special Issue Information

Dear Colleagues,

Metallic materials are widely used in the aerospace, transportation, and petrochemical industries. On the one hand, advanced plastic forming processes, such as hot stamping, extrusion forming, and forging forming, help to prepare high-performance parts with complex shapes. On the other hand, advanced severe plastic deformation processes, such as equal channel angular extrusion, high pressure torsion, multi-directional forging, and cumulative rolling welding, can greatly improve the microstructure and mechanical properties of metal materials. The goal of this Special Issue is to publish original, important, and developed research papers that focus on metal plastic deformation and forming.

In this Special Issue, we welcome the latest research on metal plastic deformation and forming. Appropriate topics include but are not limited to the following: metal material stamping, forging, extrusion, bending, or torsion forming process and finite element simulation technology; the severe plastic deformation process of metal materials; and the microstructure evolution, mechanical properties test, and related simulation during plastic deformation.

Prof. Dr. Junting Luo
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. Metals is an international peer-reviewed open access monthly 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

  • metal materials
  • plastic forming
  • severe plastic deformation
  • mechanical properties
  • microstructure
  • finite element simulation

Published Papers (3 papers)

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Research

16 pages, 14609 KiB  
Article
Ductile Fracture of Titanium Alloys in the Dynamic Punch Test
by Vladimir V. Skripnyak and Vladimir A. Skripnyak
Metals 2024, 14(5), 528; https://doi.org/10.3390/met14050528 - 30 Apr 2024
Viewed by 377
Abstract
Estimates of physical and mechanical characteristics of materials at high strain rates play a key role in enhancing the accuracy of prediction of the stress–strain state of structures operating in extreme conditions. This article presents the results of a combined experimental–numerical study on [...] Read more.
Estimates of physical and mechanical characteristics of materials at high strain rates play a key role in enhancing the accuracy of prediction of the stress–strain state of structures operating in extreme conditions. This article presents the results of a combined experimental–numerical study on the mechanical response of a thin-sheet rolled Ti-5Al-2.5Sn alloy to dynamic penetration. A specimen of a titanium alloy plate underwent punching with a hemispherical indenter at loading rates of 10, 5, 1, and 0.5 m/s. The evolution of the rear surface of specimens and crack configuration during deformation were observed by means of high-speed photography. Numerical simulations were performed to evaluate stress distribution in a titanium plate under specified loading conditions. To describe the constitutive behavior and fracture of the Ti-5Al-2.5Sn alloy at moderate strain rates, a physical-based viscoplastic material model and damage nucleation and growth relations were adopted in the computational model. The results of simulations confirm a biaxial stress state in the center of specimens prior to fracture initiation. The crack shapes and plate deflections obtained in the calculations are similar to those observed in experiments during dynamic punching. Full article
(This article belongs to the Special Issue Metal Plastic Deformation and Forming)
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14 pages, 9682 KiB  
Article
Finite Element Simulation and Experimental Study of U-Bending Forming of High-Strength Mg-Gd-Y-Zn-Zr Alloy
by Hao Wang, Anqi Huang, Shiping Xing, Chunxiang Zhang and Junting Luo
Metals 2023, 13(8), 1477; https://doi.org/10.3390/met13081477 - 16 Aug 2023
Cited by 1 | Viewed by 771
Abstract
In this study, the constitutive equation of the high-strength Mg-Gd-Y-Zn-Zr alloy sheet was established by tensile tests at different temperatures and different tensile rates. The U-shape bending forming process of the sheet was simulated under different process conditions by the DEFORM software. The [...] Read more.
In this study, the constitutive equation of the high-strength Mg-Gd-Y-Zn-Zr alloy sheet was established by tensile tests at different temperatures and different tensile rates. The U-shape bending forming process of the sheet was simulated under different process conditions by the DEFORM software. The variation rules of the stress field, strain field and free bending force of the formed parts were analyzed, and the accuracy of the finite element simulation was verified by the U-shaped bending test. Studies have shown that the equivalent stress, equivalent strain and free bending force decreased with the increase in forming temperature. With an increase in the stamping speed, the equivalent stress and free bending force increased, while the equivalent strain did not change significantly. Notably, the maximum difference in the free bending force between the test and simulation was less than 10%. The results of this study can provide guidance for the stamping forming of high-strength Mg-Gd-Y-Zn-Zr alloy sheets. Full article
(This article belongs to the Special Issue Metal Plastic Deformation and Forming)
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16 pages, 11367 KiB  
Article
Numerical Simulation of Turbulence Intensity of an Acid Solution during the Strip Steel Pickling Process
by Xiying Cui, Jianhui Wang, Jiawei Sun, Sahal Ahmed Elmi, Xuetong Li and Zhenhua Bai
Metals 2023, 13(7), 1293; https://doi.org/10.3390/met13071293 - 19 Jul 2023
Viewed by 979
Abstract
This study aims to enhance the efficiency of pickling processes by investigating the impact of strip speed and acid flow rate on the turbulence of the acid solution within the pickling tank. The research quantitatively evaluates the flow field state and distribution of [...] Read more.
This study aims to enhance the efficiency of pickling processes by investigating the impact of strip speed and acid flow rate on the turbulence of the acid solution within the pickling tank. The research quantitatively evaluates the flow field state and distribution of acid temperature within the pickling tank. Through finite element simulation, factors such as jet velocity, strip motion velocity, and acid temperature are considered to determine the turbulence intensity, turbulent kinetic energy, convective heat transfer coefficient, and average temperature of the near-wall layer of the strip surface under the oblique jet. This analysis considers the effects of these parameters on the flow field within the pickling tank. Furthermore, simulations are conducted to assess the turbulence intensity of the acid solution under various conditions. The study reveals that the intake flow rate has a substantial influence on turbulence and temperature rise at the strip exit and inlet, albeit less so, within the acid tank itself. However, an increase in strip speed notably impacts the turbulence within the center of the acid tank. These findings are invaluable for regulating the pickling process and maintaining optimal strip surface quality in industrial production settings. Full article
(This article belongs to the Special Issue Metal Plastic Deformation and Forming)
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