The fluidity of A357 alloy with scandium (Sc) and zirconium (Zr) addition

Mao, Guoling; Wu, Zhigang; Liu, Shanguang; Zhong, Liwei; Gao, Wenli

doi:10.1016/j.jmrt.2020.09.111

Cited by 10 publications

(3 citation statements)

References 13 publications

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“…It is reported that finer casting structure leads to better fluidity, and different alloying additions can refine the grain of aluminium alloy, thus improving the fluidity of cast aluminium alloy [7,31,32]. However, the quantitative relationship between grain refinement and fluidity has not been developed.…”

Section: Factors Influencing Fluiditymentioning

confidence: 99%

Fluidity of casting Al–Si series alloys for automotive light-weighting: A systematic review

Niu

Wang

Zhu

et al. 2022

Materials Science and Technology

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With the increasing demand requirements of lightweight automobiles, foundry industries are facing urgent requests from the demanders to manufacture increasingly lighter castings with thin walls and complex shapes. Fluidity is the essential parameter to evaluate the filling ability of casting alloys. Many factors are affecting the fluidity of casting Al–Si series alloys. In this review, the current understanding of the various factors influencing the fluidity of casting Al–Si series alloys was systematically summarised. Moreover, the solidification mechanism of hypoeutectic Al–Si alloys under the high-pressure die casting (HPDC) process is also discussed. HPDC process is not inversely proportional to the solidification interval, but the fluidity length increases with decreasing solidus temperature of the hypoeutectic Al–Si alloys.

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Section: Factors Influencing Fluiditymentioning

confidence: 99%

Fluidity of casting Al–Si series alloys for automotive light-weighting: A systematic review

Niu

Wang

Zhu

et al. 2022

Materials Science and Technology

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“…Aluminum-silicon alloys (like A357) are widely used in aerospace and automobile manufacturing, such as missile pylons, fighter engine crankcast, auto wheel spider, etc. [1][2][3]. Modifying eutectic silicon is a very effective and widely used way to improve the mechanical properties of aluminumsilicon alloys.…”

Section: Introductionmentioning

confidence: 99%

Effects of antimony on eutectic silicon and fracture mode of A357 alloy at different cooling rates

Mao

Liu

et al. 2022

Materialwissenschaft Werkst

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The effects of antimony on eutectic silicon and fracture mode of A357 alloy were investigated at slow and fast cooling rates by scanning electron microscopy, transmission electron microscopy, polarizing microscope, differential scanning calorimetry, optical microscope and tensile testing. The slow cooling rate is 0.16 °C/s, and the fast cooling rate is 3.20 °C/s. The results show that with antimony addition, the eutectic silicon of A357 alloy is modified. Antimony does not modify eutectic silicon of A357 alloy by increasing the number of twins. Under the same cooling rate condition, with antimony addition, the volume fraction of eutectic phases increases, and when studying the modification of eutectic silicon of some modifiers, we also need to study the eutectic phases including eutectic silicon and eutectic α‐aluminum. With antimony addition, tensile strength and elongation of A357 alloy increase, especially under fast cooling rate conditions. With the increase of elongation, the fracture mode of A357 alloy changes from I to I+II to I+II+III.

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“…ZL205A is an Al-Cu-based alloy and exhibits good mechanical properties; however, its wide freezing range leads to low fluidity, which may result in incomplete mold filling or casting defects during the production of its thin-walled components and the deterioration of its mechanical properties [4,5]. The fluidity of the alloy can be enhanced by optimizing the casting conditions, such as superheat, mold temperature, and pressure [6,7]; or by tailoring the solidification characteristics and thermophysical properties of the alloy [8][9][10][11]. However, the former approach may bring about other problems, so the latter is preferable.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Fluidity of ZL205A Alloy with the Combined Addition of Al–Ti–C and La

et al. 2021

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The effects of Al–Ti–C and La on the fluidity of a ZL205A alloy after separate and combined addition were studied by conducting a fluidity test. The fluidity of the ZL205A alloy first increased and then decreased with the increasing addition of Al–Ti–C and La; it peaked at 0.3% and 0.1% for Al–Ti–C and La, respectively. The combined addition of Al–Ti–C and La led to better fluidity, which increased by 74% compared with the base alloy. The affecting mechanism was clarified through microstructure characterization and a DSC test. The heterogeneous nucleation aided by Al–Ti–C and La, the number of particles in the melt, and the evolution of the solidification range all played a role. Based on the evolution of the fluidity and grain size, the optimal levels of Al–Ti–C and La leading to both high fluidity and small grain size were identified.

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The fluidity of A357 alloy with scandium (Sc) and zirconium (Zr) addition

Cited by 10 publications

References 13 publications

Fluidity of casting Al–Si series alloys for automotive light-weighting: A systematic review

Fluidity of casting Al–Si series alloys for automotive light-weighting: A systematic review

Effects of antimony on eutectic silicon and fracture mode of A357 alloy at different cooling rates

Enhanced Fluidity of ZL205A Alloy with the Combined Addition of Al–Ti–C and La

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