Special Issue "High Pressure Die Casting Process for Light Alloys"

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Crystalline Metals and Alloys".

Deadline for manuscript submissions: 15 July 2023 | Viewed by 790

Special Issue Editors

School of Metallurgy and Environment, Central South University, Changsha, China
Interests: solidification; metal casting; numerical modelling; microstructure; mechanical property; ICME; materials genome; machine learning
Institute of Advanced Materials, Dongliang Aluminium Co., Ltd, Huzhou, China
Interests: Al alloys and composites; grain refinement; casting; materials properties; solidification
College of Materials Science and Engineering, Chongqing University, Chongqing, China
Interests: Al / Mg alloys; double oxide films; foundry and casting; materials properties; solidification

Special Issue Information

Dear Colleagues,

As one of the most popular manufacturing processes for light metals such as aluminium and magnesium alloys in the casting industry, high-pressure die casting is known for its high productivity, high dimensional accuracy and excellent mechanical properties. However, due to the fierce turbulence and limited shrinkage feeding capability, defects such as entrapped air and shrinkage porosity can form in castings, which affects the stability of mechanical properties in the castings. Such variation in mechanical properties between Al-based or Mg-based alloys has been extensively researched and the main explanation comes down to the randomness in distribution of the above-mentioned defects in castings, which causes inhomogeneity in the cast microstructure and leads to early failure during the material deformation process. The formation and existence of potential defects in the HPDC process for light metals poses a huge threat to the alloy development, process design, as well as the manufacturing and application of HPDC products. In this Special Issue, the complete cycle of the HPDC process for light alloys will be addressed. Research areas of interest include, but are not limited to, the following areas from both experimental and modelling perspectives:

  1. Material selection/alloy development
  2. Microstructure and mechanical properties of the HPDC alloy
  3. HPDC machine selection and process design/optimization
  4. Melt flow, heat transfer, turbulence, intense shearing in HPDC
  5. Alloy nucleation, grain refinement, micro-segregation
  6. Solidification characteristics, defects formation mechanism, cast quality control
  7. Heat treatment and subsequent processing techniques
  8. Metal recycling and circulation
  9. Artificial intelligence, machine learning, big data analysis and ICME/material genome research work regarding the HPDC process

Dr. Kun Dou
Dr. Yijie Zhang
Dr. Tian Li
Guest Editors

Manuscript Submission Information

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  • high-pressure die casting (HPDC)
  • light alloy
  • solidification
  • porosity
  • grain refinement

Published Papers (1 paper)

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The Effect of Process Parameters on the Properties and Microstructure of A380 Aluminum Alloy Casting with Different Wall Thicknesses
Crystals 2023, 13(4), 587; https://doi.org/10.3390/cryst13040587 - 29 Mar 2023
Viewed by 638
In the present work, the effects of different die-casting process parameters on the mechanical properties and microstructure of A380 aluminum alloy casting with different wall thicknesses during the solidification process have been experimentally investigated. The experimental results show that both boost pressure and [...] Read more.
In the present work, the effects of different die-casting process parameters on the mechanical properties and microstructure of A380 aluminum alloy casting with different wall thicknesses during the solidification process have been experimentally investigated. The experimental results show that both boost pressure and injection speed have a significant effect on the mechanical properties of the casting. As the injection speed increases, the changes in mechanical properties are more significant in the thin-walled area, while increasing the boosting pressure has a greater effect on the mechanical properties of the thick-walled area. In addition, the evolution of microstructure composition, including the α-Al phase, eutectic Si phase and Al-Si-Fe-Mn phase, has been analyzed and compared by energy-dispersive spectroscopy (EDS), optical microscopy (OM) and scanning electron microscopy (SEM). It was found that the α-Al phase in the thin-walled area is significantly refined with the increase of injection speed. Meanwhile, with the increase of boost pressure, the α-Al phase in the thick-walled area gradually becomes finer, and the distribution of the eutectic Si phase and the Al-Si-Fe-Mn phase in the alloy becomes more uniform. Thus, the injection speed and boost pressure have an important impact on the overall forming quality of the casting. Full article
(This article belongs to the Special Issue High Pressure Die Casting Process for Light Alloys)
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