, Volume 71, Issue 12, pp 4349–4361 | Cite as

The Current Status and Development of Semi-solid Powder Forming (SPF)

  • Xia LuoEmail author
  • Min Wu
  • Chao Fang
  • Bensheng Huang
Aluminum: Shape Casting and Forming


Semi-solid powder forming is a promising near-net-shaped forming technology, which has the advantages of powder metallurgy and semi-solid forming, such as fine grains, low forming pressure and short process flow. It was used to prepare wide solidification range alloys and its composites. Until now, there have been many studies on the parameters, microstructure and mechanical properties of this technology, but few on the forming principles. Because deformation, solidification and densification occur simultaneously, the forming mechanism is very complex. The liquid fraction is the key factor influencing the microstructure and mechanical properties. Semi-solid compression of porous materials was carried out to study the deformation mechanism of semi-solid powders. The combination mechanism and densification process for semi-solid powder rolling has been analyzed, and the compaction behavior of powders in the semi-solid state has been studied. Shima porous yield criterion and Doraivelu plastic yield criterion were applied in the simulation of semi-solid powder rolling. Based on the Fourier heat conduction equation and the related parameters of semi-solid powder, the rolling force and relative density were simulated by using the Marc finite element software platform. The simulation results are in agreement with the experimental results. Although some achievements have been made in the theoretical research and numerical simulation, the yield criteria and mathematical models suitable for semi-solid powder forming need to be further established. In addition, further optimization of this technology and its application in commercial applications should be the research direction.



The authors gratefully acknowledge the financial support of the Young Scholars Development Fund of SWPU (No. 201599010066), National Natural Science Foundation of China (No. 51704255), and Open Fund of National Engineering Research Center of Near-net-shape Forming Technology for Metallic Materials, South China University of Technology (No. 2015002).


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© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringSouthwest Petroleum UniversityChengduPeople’s Republic of China
  2. 2.School of Automobile and Transportation EngineeringGuangdong Polytechnic Normal UniversityGuangzhouPeople’s Republic of China

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