Microstructure and Rheological Properties of Semi-Solid 7075 Slurries Using SEED Rheocasting Process

Bolouri, Amir; Zhao, Qin Fu; Côté, Pascal; Chen, X. Grant

doi:10.4028/www.scientific.net/ssp.256.288

Cited by 13 publications

(4 citation statements)

References 15 publications

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“…In the rheo-route, raw material is melted and then treated by the special technology to obtain spherical or near-spherical aluminum particles directly. The special technology includes Swirled Enthalpy Equilibration Device (SEED) [20][21][22][23], Enthalpy Control Process (ECP) [24,25], Gas Induced Semi-Solid (GISS) [26][27][28][29][30], Rapid Slurry Formation (RSF/RheoMetal) [31 -33], Cooling Slope (CS) [34 -36], Air-Cooled Stirring Rod Device (ACSR) [37][38][39] and others.…”

Section: Semi-solid Metal Preparingmentioning

confidence: 99%

Application of Aluminum Alloy Semi-Solid Processing Technology in Automobile: A Review

Liu²,

Zhu³

2023

IJAMM

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Review Application of Aluminum Alloy Semi-Solid Processing Technology in Automobile: A Review Hongxing Lu 1, * , Zhengbai Liu 2, and Qiang Zhu 1 1 Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China 2 School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen 518055, China * Correspondence: luhx@sustech.edu.cn Received: 15 January 2023 Accepted: 23 February 2023 Published: 17 March 2023 Abstract: Semi-solid processing technology is a new forming technology for aluminum alloy components, which has advantages in producing high-quality components with complex shapes. Several methods of semi-solid metal preparing and forming have been developed in the past 50 years. Some methods have been applied to provide high-quality components or improve castings’ quality in the field of automobile. This paper reviews the development and application of semi-solid processing technology and discusses about its future application prospects.

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Section: Semi-solid Metal Preparingmentioning

confidence: 99%

Application of Aluminum Alloy Semi-Solid Processing Technology in Automobile: A Review

Liu²,

Zhu³

2023

IJAMM

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“…Figure 3b shows this flow behavior schematically. Rheological behavior experiments and fluidity test results illustrated that the 7075 Al slurries can flow quite well even at medium initial solid fractions [64,87,88]. The unique slurry containing fine and solid particles resulting in fine microstructure is in demand as an alternative to the coarse microstructure of conventional manufacturing.…”

Section: Flow Behavior and Filling Capacitymentioning

confidence: 99%

Current Progress in Rheoforming of Wrought Aluminum Alloys: A Review

Gan

et al. 2020

Metals

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Semi-solid processing (SSP), including rheoforming and thixoforming, offers a promising opportunity to manufacture net-shaped parts with complex structure and excellent mechanical properties. Owing to its low cost and short process, rheoforming has been the subject of extensive study over the last two decades. The interest in the rheoforming of wrought aluminum alloys is progressively growing among both the research and industrial communities. This review starts with reviewing the recent efforts and advances on preparation of semi-solid slurry of wrought Al alloys, followed by discussing the correlation between microstructure and performance of these alloys. Finally, special attention is paid in the industrial application and the future trends of rheoforming of wrought aluminum alloys.

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“…Power-Law (PL), Herschel-Bulkley (HB), Cross and Carreau-Yasuda (CY) models are usually used to script the relationship between slurry's viscosity and shear rate [4][5][6][7]. X.-Grant Chen studied the rheological properties of 7075 aluminum alloy semi-solid slurry with high the solid fraction of 40% ~ 60% by using rapid compression test [8]. This work studied the rheological behavior of 7075 aluminum alloy semi-solid slurry with the solid fraction of 0% ~ 30% in both shear stress-controlled test and shear rate-controlled test by using rotational rheometer.…”

Section: Introductionmentioning

confidence: 99%

Rheological Modeling of 7075 Aluminum Alloy Semi-Solid Slurry and its Application in the Simulation of SEED Rheocasting Process

Lu,

Meng,

Bunnareaksathya

et al. 2023

SSP

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Rheocasting technology has been successfully applied to produce aluminum alloy parts of automobile and communication equipment. However, its application scope is still limited. One reason is that the strength of the applied alloys is limited. In recent years, lots of researchers have tried to use 7075 aluminum alloy in the rheocasting process because this alloy has excellent mechanical properties. In this work, the rheological behavior of 7075 aluminum alloy semi-solid slurry is studied through shear stress-controlled test and shear rate-controlled test. Then the constitutive parameters in Power-Law (PL) model or Carreau-Yasuda (CY) model of non-Newtonian fluid are determined. The models are used to simulate the flow behavior of 7075 aluminum alloy semi-solid slurry in Swirled Enthalpy Equilibration Device (SEED) rheocasting process. The simulation results indicate that the CY model derived from the shear rate sweep test is more suitable for simulating the flow behavior of 7075 aluminum alloy semi-solid slurry during rheocasting than the other models.

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Microstructure and Rheological Properties of Semi-Solid 7075 Slurries Using SEED Rheocasting Process

Cited by 13 publications

References 15 publications

Application of Aluminum Alloy Semi-Solid Processing Technology in Automobile: A Review

Application of Aluminum Alloy Semi-Solid Processing Technology in Automobile: A Review

Current Progress in Rheoforming of Wrought Aluminum Alloys: A Review

Rheological Modeling of 7075 Aluminum Alloy Semi-Solid Slurry and its Application in the Simulation of SEED Rheocasting Process

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