Influence of alloy elements and pouring temperature on the fluidity of cast magnesium alloy

Qin, Hua; De-ming, Gao; Zhang, Hongjun; Zhang, Yuhui; Zhai, Qijie

doi:10.1016/j.msea.2006.08.060

Cited by 29 publications

(8 citation statements)

References 9 publications

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“…It is reasonable to conclude that the Al 2 Ce particle is the effective nucleation substrate for the grain refinement of Mg. Generally, it is considered that the active nucleant particles should have the good crystallographic matching with the matrix [27]. The edge-to-edge matching (E2EM) model proposed by Zhang et al [5,28] has been successfully used to predict the orientation relationships (ORs) between the nucleant particle and both Al and Mg matrix, according well with the experimental results [29][30][31][32][33].…”

Section: Grain Refinement Mechanismmentioning

confidence: 91%

Role of Al modification on the microstructure and mechanical properties of as-cast Mg–6Ce alloys

Jiang

Zeng

et al. 2015

Materials Science and Engineering: A

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Section: Grain Refinement Mechanismmentioning

confidence: 91%

Role of Al modification on the microstructure and mechanical properties of as-cast Mg–6Ce alloys

Jiang

Zeng

et al. 2015

Materials Science and Engineering: A

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“…It has also been determined that increasing the pouring height has better filling ability depending on the increase of the filling speed [33]. Hua found similar results in his study, and also determined that the decrease in liquidus temperature with the addition of alloying elements increased the fluidity [34]. Yang, Li, Du, Wang and Tang investigated the effect of Ni and Si contents on the fluidity of Al-Ni-Si alloys with a spiral permanent pattern.…”

Section: Introductionmentioning

confidence: 68%

Modeling the Effect of Pour Height, Casting Temperature and Die Preheating Temperature on the Fluidity of Different Section Thicknesses in Permanent Mold Casting of Al12Si Alloys

ASAN>

Çolak

2022

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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The first and most important step of the casting method is that the liquid metal completely fills the mold cavity. One of the common mistakes in the casting process is that the liquid metal does not fully fill the mold cavity. For this reason, there is a need to improve the fluidity properties of aluminum alloys, the usage area of which is expanding thanks to its many advantageous properties. The aim of this study is to examine the parameters affecting the fluidity in the casting of Al12Si alloy by modeling techniques. The effects of varying pouring height, casting temperature and mold preheating temperature on fluidity in different section thicknesses were investigated in permanent mold casting. A specially designed mold with 2 mm, 4 mm, 6 mm and 8 mm section thickness was used in the study. Modeling studies were carried out with the FlowCast filling module, which is integrated into the SolidCast Casting simulation program. When the results are examined; It has been determined that all parameters play an active role on fluidity and different filling levels in different section thicknesses.

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“…Используются спиральные, U-образные и другие пробы [5]. Работ, в которых изучалась жидкотекучесть магниевых сплавов, немного [6][7][8], и это связано со сложностью их плавки и литья.…”

Section: Introductionunclassified

Prediction of Az91 Casting Misruns and Alloy Fluidity Using Numerical Simulation

Петрова

Баженов

Колтыгин

2018

Izv.VUZ. Tsvet. Met.

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Prediction of the misrun formation in thin-walled castings of magnesium alloys is a crucial task for foundry. The computer simulation of the casting processes can be used to solve this problem. A reasonable simulation results requires the correct thermal properties of the alloy and the mold over a wide range of temperatures and the value of interfacial heat transfer coefficient between the casting and the mold, and the critical solid fraction at which the alloy flow in the mold is choked off. In this paper we determine the interfacial heat transfer coefficient between the magnesium alloy ML5 (AZ91) and the sand mold with a furan binder. It was done by the comparing the simulated spiral test lengths with the experimental spiral test lengths obtained under the same conditions. Above the liquidus temperature the interfacial heat transfer coefficient IHTCL = 1500 W/(m2 ·K) at pouring temperatures 670 and 740 °С and IHTCL = 1800 W/(m2 ·K) at pouring temperature 810 °С. Below the solidus temperature the interfacial heat transfer coefficient IHTCS = 600 W/(m2 ·K). We also determined the critical solid fraction of ML5 (AZ91) magnesium alloy for the casting made in the furan bonded sand mold (at a cooling rate ~2 K/s) and it was 0.1–0.15. We compared the simulated misruns position and the experimental misrun position in the «Protective cup» casting produced from the ML5 (AZ91) alloy into the sand mold with furan binder. The value of the critical solid fraction was clarified. The castings were made at pouring temperatures 630 and 670 °C, and the critical solid fraction was 0.1 in both cases.

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Influence of alloy elements and pouring temperature on the fluidity of cast magnesium alloy

Cited by 29 publications

References 9 publications

Role of Al modification on the microstructure and mechanical properties of as-cast Mg–6Ce alloys

Role of Al modification on the microstructure and mechanical properties of as-cast Mg–6Ce alloys

Modeling the Effect of Pour Height, Casting Temperature and Die Preheating Temperature on the Fluidity of Different Section Thicknesses in Permanent Mold Casting of Al12Si Alloys

Prediction of Az91 Casting Misruns and Alloy Fluidity Using Numerical Simulation

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