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Study on Plastic Processing Technologies for Light-Weight Metals
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Study on Plastic Processing Technologies for Light-Weight Metals

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

Deadline for manuscript submissions: closed (10 June 2023) | Viewed by 10039

Special Issue Editors

Prof. Dr. Wenchen Xu

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Interests: lightweight alloys; plastic processing; precision forming; microstructure; texture; property; modelling and prediction
Dr. Xueze Jin

E-Mail Website
Guest Editor Assistant
IMDEA Materials Institute, C/ Eric Kandel, 2, 28906 Getafe, Madrid, Spain
Interests: Mg alloys; 3D printing; plastic deformation

Special Issue Information

Dear Colleagues,

With the development of aviation and automobile industries, lightweight structural components have increasingly been used to reduce the weight, improve the service performance and save the energy consumption of space and automobile vehicles in recent years. On one hand, light metals, such as aluminum, magnesium, lithium and titanium alloys, are excellent candidates for structural materials. On the other hand, advanced plastic-processing technologies, such as hot pressing forming, superplastic forming, extrusion and flow forming, are more and more widely utilized to form complex-shaped parts. However, there are quite a few challenges for the plastic processing of lightweight components, such as forming precision, mechanical property, production efficiency, cost, etc. In addition, novel plastic-processing technologies are highly needed to boost the development of lightweight manufacture. This Special Issue aims to cover recent progress and new advances in plastic processing, involving:

  • Plastic forming of lightweight parts;
  • Relationship between microstructure and properties during plastic deformation of lightweight alloys;
  • Deformation mechanism and recrystallization behavior;
  • Texture and anisotropy of mechanical property;
  • Heat treatment and thermomechanical processing;
  • Physical and numerical simulation and microstructure characterization;
  • Optimization of hot processing parameters related to microstructure, mechanical property and forming quality;
  • Novel plastic-processing methods.

Prof. Dr. Wenchen Xu
Dr. Xueze Jin
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

  • Lightweight
  • Plastic processing
  • Microstructure
  • Mechanical property
  • Texture
  • Modelling

Published Papers (6 papers)

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Research

14 pages, 5786 KiB  
Article
Effect of Lattice Constants and Precipitates on the Dimensional Stability of Rolled 2024Al during Isothermal Aging
by Rongdi Pan, Pingping Wang, Shan Jiang, Wenshu Yang, Ping Wu, Jing Qiao, Guoqin Chen and Gaohui Wu
Materials 2023, 16(4), 1440; https://doi.org/10.3390/ma16041440 - 08 Feb 2023
Cited by 2 | Viewed by 1051
Abstract
The change in material dimensional will lead to the decline of instrument accuracy and reliability. In this paper, the characterization and analysis of the lattice constant, precipitates, and dislocation density of the material by X-ray diffraction (XRD) and transmission electron microscopy (TEM) reveals [...] Read more.
The change in material dimensional will lead to the decline of instrument accuracy and reliability. In this paper, the characterization and analysis of the lattice constant, precipitates, and dislocation density of the material by X-ray diffraction (XRD) and transmission electron microscopy (TEM) reveals the reason why the relative dimensional change in the rolled 2024Al is one order of magnitude lower than that of the as-cast 2024Al during isothermal aging. Compared with as-cast 2024Al, the dislocation density of rolled 2024Al is higher, the lattice constant decreases less before and after aging, and the precipitates have orientation and more content, resulting in the dimensional change in rolled 2024Al being smaller than that of as-cast 2024Al. In addition, two main reasons for decreasing the dimensional change in rolled 2024Al are discussed: the decrease in lattice constant, the formation and growth of the S phase before and after aging. Full article
(This article belongs to the Special Issue Study on Plastic Processing Technologies for Light-Weight Metals)
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9 pages, 3563 KiB  
Article
Experimental Investigation on the Formability of Al-Mg Alloy 5052 Sheet by Tensile and Cupping Test
by Hongmei He, Tao Yang, Yi Ren, Yi Peng, Song Xue and Lixuan Zheng
Materials 2022, 15(24), 8949; https://doi.org/10.3390/ma15248949 - 14 Dec 2022
Cited by 4 | Viewed by 1460
Abstract
Aiming at the enhancement of the lightweight formability potential of aluminum alloy, the bulging and tensile properties of a 5052 Aluminum alloy sheet were tested on a microcomputer controlled sheet metal forming tester and tensile testing machine. The effects of different blank holder [...] Read more.
Aiming at the enhancement of the lightweight formability potential of aluminum alloy, the bulging and tensile properties of a 5052 Aluminum alloy sheet were tested on a microcomputer controlled sheet metal forming tester and tensile testing machine. The effects of different blank holder force, punch velocity and lubrication conditions were investigated on bulging properties by the experimental analysis. The cupping values (Erichsen Cupping Index: IE) of sheets with a thickness of 1.2 mm at room temperature were obtained under different process parameters. Meanwhile, the anisotropic property of the material was analyzed in different rolling directions. The results show that the sheet cupping values increase with the increase of blank holder force and punch velocity, and the stress state was changed due to the changing of the blank holder force and strain rate. Moreover, the use of lubricating conditions with a lower coefficient of friction allows the sheet to exhibit a larger cupping value. The effect of rolling direction on the anisotropy of 5052 aluminum alloy sheet is distinct, which means in the aluminum alloy sheet forming process the anisotropy factor should be carefully considered. Full article
(This article belongs to the Special Issue Study on Plastic Processing Technologies for Light-Weight Metals)
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14 pages, 5436 KiB  
Article
Effects of Forging and Heat Treatment on Martensite Lath, Recrystallization and Mechanical Properties Evolution of 18Ni(250) Maraging Steel
by Shucong Xu, Lin Yuan, Wenchen Xu, Debin Shan and Bin Guo
Materials 2022, 15(13), 4600; https://doi.org/10.3390/ma15134600 - 30 Jun 2022
Cited by 5 | Viewed by 1555
Abstract
The manufacturing process of maraging steel parts include forging, heat treatment and other technological links, and the strengthening mechanism at different stages is different, which has an important impact on the process design of forgings. To investigate the strengthening behavior of maraging steel, [...] Read more.
The manufacturing process of maraging steel parts include forging, heat treatment and other technological links, and the strengthening mechanism at different stages is different, which has an important impact on the process design of forgings. To investigate the strengthening behavior of maraging steel, forging experiments with different deformation amounts and heat treatment conditions were carried out, and the microstructural and mechanical properties evolution of 18Ni(250) steel was analyzed. The experimental results show that the size of the martensite lath is affected by multiple factors such as the influence of grain size, recrystallization and martensite substructure fraction. The strengthening mechanism of maraging steel during forging and heat treatment is different. Forging combined with heat treatment can refine grains, and the internal defects of the original material can be better eliminated. The thermal deformation can better play the role of grain refinement compared with cyclic phase transformation, which can improve the plasticity of 18Ni(250) maraging steel. Full article
(This article belongs to the Special Issue Study on Plastic Processing Technologies for Light-Weight Metals)
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Graphical abstract

17 pages, 8561 KiB  
Article
Effect of Multi-Pass Power Spinning on Microstructure Homogenization and Mechanical-Property Strengthening of Ti2AlNb-Based Alloy Using Welded Tube Blank
by Sibing Wang, Wenchen Xu, Bo Wang, Guoping Yang and Debin Shan
Materials 2022, 15(3), 1013; https://doi.org/10.3390/ma15031013 - 28 Jan 2022
Cited by 3 | Viewed by 2157
Abstract
Long seamless tubes of Ti2AlNb-based alloys are difficult to manufacture through conventional forming methods. In this study, a multi-pass power spinning process was first utilized to fabricate thin-walled tube of Ti-22Al-24Nb-0.5Mo alloy using welded thick tube blank, assisted by on-line electro-magnetic [...] Read more.
Long seamless tubes of Ti2AlNb-based alloys are difficult to manufacture through conventional forming methods. In this study, a multi-pass power spinning process was first utilized to fabricate thin-walled tube of Ti-22Al-24Nb-0.5Mo alloy using welded thick tube blank, assisted by on-line electro-magnetic induction heating to maintain high spinning temperature during the whole spinning process. After six-pass hot power spinning at 950 ± 30 °C, the microhardness difference of BM (base metal), HAZ (heat affect zone) and FZ (fusion zone) became much smaller, and the microhardness fluctuation ΔHV dropped to 32 from 122 of the as-welded joint due to the phase composition and microstructure homogenization. The grain size of B2 phase was refined to 0.4/0.6 μm from 2.7/10.8 μm of the as-received BM/FZ, respectively. Meanwhile, the B2 phase <111>B2//ND texture of the as-received rolled sheet weakened during multi-pass spinning due to recrystallization, which co-existed with <001>B2//ND texture in final pass. The ultimate tensile strength in axial/tangential direction was increased to 1245/1299 MPa from 1206/1010 MPa of the as-received rolled sheet, respectively, mainly due to the effect of fine grain strengthening. This study provides an effective way to manufacture high-performance tubular workpieces with low cost and high efficiency. Full article
(This article belongs to the Special Issue Study on Plastic Processing Technologies for Light-Weight Metals)
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17 pages, 22575 KiB  
Article
Research on the Secondary Forgeability of High Volume Fraction Whisker Reinforced Aluminum Matrix Composites of Original Squeeze Casting
by Shucong Xu, Lin Yuan, Lei Wang, Jinyu Li, Fuchang Xu, Zhenzhu Zheng, Debin Shan and Bin Guo
Materials 2021, 14(23), 7261; https://doi.org/10.3390/ma14237261 - 27 Nov 2021
Cited by 1 | Viewed by 1301
Abstract
The poor formability of high volume fraction whisker reinforced aluminum matrix composites of original squeeze casting is an important factor restricting its further development and application. Currently, there are no reports on the secondary forgeability of aluminum matrix composites of original squeeze casting, [...] Read more.
The poor formability of high volume fraction whisker reinforced aluminum matrix composites of original squeeze casting is an important factor restricting its further development and application. Currently, there are no reports on the secondary forgeability of aluminum matrix composites of original squeeze casting, although some papers on its first forgeability are published. The secondary forgeability is very important for most metals. This study aims to investigate the secondary forgeability of aluminum matrix composites. In this study, the secondary upsetting experiments of 20 vol% SiCw + Al18B4O33w/2024Al composites, treated by the original squeeze casting and extrusion, were carried out. The first upsetting deformation is close to the forming limit, the secondary upsetting deformation under the same deformation conditions was carried out to investigate the secondary forgeability. The experimental results show that, unlike aluminum alloys, the 20 vol% SiCw + Al18B4O33w/2024Al composites at the original squeeze casting and extrusion states have no secondary forgeability due to the whisker rotating and breaking during the secondary upsetting. The high volume fraction whisker reinforced aluminum matrix composites of original squeeze casting cannot be formed by the multiple-forging method since the cavities and cracks caused by whisker fracture continue to expand during secondary processing, which leads to further extension of macroscopic cracks. Full article
(This article belongs to the Special Issue Study on Plastic Processing Technologies for Light-Weight Metals)
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11 pages, 4714 KiB  
Article
Effect of a Compound Energy Field with Temperature and Ultrasonic Vibration on the Material Properties and Bending Process of TC2 Titanium Alloy
by Tiejun Gao, Kaifeng Wang, Zhiyuan Ling and Zhongjin Wang
Materials 2021, 14(23), 7192; https://doi.org/10.3390/ma14237192 - 25 Nov 2021
Cited by 4 | Viewed by 1459
Abstract
Due to the low formability and forming quality of titanium alloy, the forming process of a compound energy field (CEF) with temperature and ultrasonic vibration was proposed. Tensile tests were carried out to investigate the effect of the CEF on the true stress–strain [...] Read more.
Due to the low formability and forming quality of titanium alloy, the forming process of a compound energy field (CEF) with temperature and ultrasonic vibration was proposed. Tensile tests were carried out to investigate the effect of the CEF on the true stress–strain curve, yield strength, elastic modulus, and other mechanical properties of the TC2 titanium alloy. Bending tests assisted by CEF were also performed to investigate the effect of different parameters of the CEF on bending force, spring-back, bending fillet radius, and microstructure of TC2 titanium. The results demonstrate that compared to the process under a single-temperature field, the CEF can reduce yield strength, elastic modulus, bending force, bending fillet, and the spring-back angle, which shows that the CEF can further increase the high-temperature softening effect of TC2 titanium. Furthermore, this effect becomes more remarkable when ultrasonic vibration energy increases. As a result, the formability of titanium alloy can be improved. Full article
(This article belongs to the Special Issue Study on Plastic Processing Technologies for Light-Weight Metals)
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