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Metals
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Advanced Forming Process of Light Alloy
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Advanced Forming Process of Light Alloy

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: closed (20 April 2024) | Viewed by 2876

Special Issue Editors

Dr. Hongwu Song

E-Mail Website
Guest Editor
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Interests: high-performance metallic materials; advanced forming methods; precision fabrication of tube; plasticity theory; constitutive modeling; microstructure modeling; fracture modeling
Dr. Shuaifeng Chen

E-Mail Website
Guest Editor
Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
Interests: light-weight metallic alloys; microstructure and texture optimization; material modeling; multi-scale modeling; crystal plasticity simulation; recrystallization mechanism; fracture modeling
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Light-weight alloys have played increasing important roles in modern industries, enabling sustainable development in an energy-saving and environmentally friendly way. In recent years, the use of light-weight alloys, including aluminum alloy, magnesium alloy, and titanium alloy, has achieved a certain degree of success for aerospace, automotive industry, or civil engineering applications. To satisfy the increasing demands for mechanical behavior and in-service performance (fatigue, creep and damping, etc.), advanced light-weight alloys have been developed. Generally, the high performance of these advanced light-weight alloys is realized via the control of grain structure and phases (or precipitations) via processing and forming methods.

Additionally, components with complex profiles are always needed to fulfill the designated structure function. In fact, the combination of advanced light-weight alloys and complex-shaped components is of great significance and high efficiency for further weight reduction and performance improvement, whereas inferior ductility and poor formability are usually found in advanced light-weight alloys due to the well-known trade off relationship between strength and ductility. Meanwhile, the complex shape of components further increases the difficulty in the forming process. Thus, the development and application of advanced metal-forming technology in light-weight alloys has become an essential research topic. 

The current Special Issue aims to compile the recent developments in the field of advanced metal-forming technology and its application to light-weight alloys. The potential papers cover reviews of recent progress, understanding of microstructure and texture evolution during advanced processing and forming methods, the development of new forming technology, and the application of advanced forming technology to light-weight alloys.

Dr. Hongwu Song
Dr. Shuaifeng Chen
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. 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

  • light-weight alloys
  • processing and forming technology
  • microstructure and texture evolution
  • multi-scale modeling
  • constitutive model
  • crystal plasticity simulation
  • experiment characterization
  • formability and fracture

Published Papers (3 papers)

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Research

18 pages, 7760 KiB  
Article
A New Phenomenological Model to Predict Forming Limit Curves from Tensile Properties for Hot-Rolled Steel Sheets
by Wei-Jin Chen, Hong-Wu Song, Shuai-Feng Chen, Yong Xu, Si-Ying Deng, Zheng Cai, Xin-Hua Pei and Shi-Hong Zhang
Metals 2024, 14(2), 168; https://doi.org/10.3390/met14020168 - 29 Jan 2024
Viewed by 786
Abstract
A phenomenological model for the prediction of the forming limit curve (FLC) based on basic mechanical properties through a uniaxial tensile test can tremendously shorten the design time of the forming process and reduce the measuring costs. In this paper, a novel phenomenological [...] Read more.
A phenomenological model for the prediction of the forming limit curve (FLC) based on basic mechanical properties through a uniaxial tensile test can tremendously shorten the design time of the forming process and reduce the measuring costs. In this paper, a novel phenomenological model named the IMR-Baosteel model (abbreviated as the IB model) is proposed for efficient and accurate FLC prediction of hot-rolled steel sheets featuring distinct variations in thickness and mechanical properties. With a systematic test of the plane strain forming limit (FLC0), it was found that a higher regression correlation exists between the FLC0 and the total elongation under different sheet thicknesses. For accurate assessment of the FLC0 from tensile properties, compared using experiments, the error of FLC0 calculated with the proposed model is within 10%. In the IB model, the left side of FLC can be calculated using a line with a slope of −1 while the right side of the FLC is obtained via a modified Keeler model with the exponent (p) determined as 0.45 for hot-rolled steels. Complete experimental FLCs of hot-rolled steels from measurements and the literature were used to validate the reliability of the proposed model. Resultantly, the prediction of FLCs with the proposed IB model is greatly improved, and agrees much better with the experimental FLCs than the predictions of the well-known Keeler model, Arcelor model and Tata Steel model. Full article
(This article belongs to the Special Issue Advanced Forming Process of Light Alloy)
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17 pages, 8112 KiB  
Article
The Effect of Powder Temperature on Semi-Solid Powder Rolling AA2024 Based on Experiments and Numerical Simulation
by Min Wu, Renye Cai, Yankun Wang, Xia Luo, Junjie Yu and Xiangkun Zeng
Metals 2023, 13(12), 1919; https://doi.org/10.3390/met13121919 - 22 Nov 2023
Viewed by 723
Abstract
Semi-solid powder rolling (SSPR) is widely used to produce alloy strips with fine grains and excellent performances in the automotive, aerospace and shipbuilding industries. During SSPR, powder temperature, as a very important parameter, greatly affects strips’ microstructures and mechanical properties, which have been [...] Read more.
Semi-solid powder rolling (SSPR) is widely used to produce alloy strips with fine grains and excellent performances in the automotive, aerospace and shipbuilding industries. During SSPR, powder temperature, as a very important parameter, greatly affects strips’ microstructures and mechanical properties, which have been investigated by many researchers, but its effect on the forming process and mechanism has rarely been studied. Therefore, based on online experimental detection and transient simulation, the microstructures, strip temperatures, relative densities and rolling forces at different conditions were, respectively, measured, calculated, compared and analyzed in order to study the deformation process and mechanism during SSPR. The result shows that with the increase in powder temperature, the strip temperature and relative density increase, while the rolling force decreases. The grains of the strips are refined after SSPR, and fine and dense microstructures are obtained at 600 °C, which is the optimum powder temperature. In the main deformation sections (II and III), when the contact normal force exists and reaches a maximum, the relative density and rolling force increase rapidly. At these sections, the strips rolled at 600 °C are mainly in a porous solid state, and powder crushing dominates the strip deformation. Therefore, SSPR at 600 °C and below can be considered porous or powder hot rolling, integrating powder crushing, solidification, deformation, densification and grain coarsening. Moreover, as the simulated values are basically consistent with experimental values, the thermomechanical coupling model based on the Fourier equation and its parameters are confirmed to be reasonable. Full article
(This article belongs to the Special Issue Advanced Forming Process of Light Alloy)
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14 pages, 9147 KiB  
Article
Numerical Simulation and Temperature Modeling of Magnesium Alloy Strip Rolled by Heated Roll
by Ruibin Mei, Lihao Chen, Li Bao, Changsheng Li and Xianghua Liu
Metals 2023, 13(10), 1785; https://doi.org/10.3390/met13101785 - 21 Oct 2023
Viewed by 899
Abstract
A prediction model for the outlet temperature of magnesium alloy strips in the process of heated-roll rolling was established by using linear fitting and nonlinear regression methods. By inputting the rolling parameters into the model, the outlet temperature of the strip can be [...] Read more.
A prediction model for the outlet temperature of magnesium alloy strips in the process of heated-roll rolling was established by using linear fitting and nonlinear regression methods. By inputting the rolling parameters into the model, the outlet temperature of the strip can be accurately predicted, which will then optimize and regulate the properties and microstructures of the magnesium alloys in the rolled form. To verify the reliability of the model, heat transfer experiments of the magnesium alloy rolled by heated rolls were carried out. The results show that under the same conditions, the actual outlet temperature measured experimentally matches well with the outlet temperature predicted by the model, and the relative error is kept within 10%. In the modeling process, Deform V11.0 software was used to simulate the thermal–mechanical behavior of the magnesium alloy rolled by the heated roll. In the process of analyzing the simulated heat transfer, it was found that the temperature rise of the surface and the core is divided into three identical stages: the slow rise, the fast rise, and the thermal equilibrium stages. In addition, the mechanical behavior of the rolling deformation zone was also analyzed, and the strip was subjected to direct heat transfer from the heated rolls during the hot rolling process so that the softening played a major role and the stress value gradually decreased from the middle of the deformation zone to the inlet end and the outlet end. This is so that it can be known that the process of being rolled by the heated rolls not only improves the rolling efficiency, but also ensures the deformation temperature and obtains fine grains. Full article
(This article belongs to the Special Issue Advanced Forming Process of Light Alloy)
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