Special Issue "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: 20 January 2022.

Special Issue Editor

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

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
Guest Editor

Manuscript Submission Information

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Keywords

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

Published Papers (2 papers)

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Research

Article
Research on the Secondary Forgeability of High Volume Fraction Whisker Reinforced Aluminum Matrix Composites of Original Squeeze Casting
Materials 2021, 14(23), 7261; https://doi.org/10.3390/ma14237261 - 27 Nov 2021
Viewed by 202
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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Article
Effect of a Compound Energy Field with Temperature and Ultrasonic Vibration on the Material Properties and Bending Process of TC2 Titanium Alloy
Materials 2021, 14(23), 7192; https://doi.org/10.3390/ma14237192 - 25 Nov 2021
Viewed by 157
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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