Study on Microstructure Distribution of Al-Cu-Mg Alloy in Squeeze Casting Process

Li, Longfei; Zheng, Yi; Chen, Yunbo; Feng, Jian; Li, Chunming; Chen, Lin; Zuo, Lingli; Zhang, Yang

doi:10.1088/1742-6596/2338/1/012038

Cited by 3 publications

(3 citation statements)

References 10 publications

(9 reference statements)

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“…The microstructures of the 0.2 Si alloy exists the α-Al phase with different intermetallic particles distribute with in a granular and grain boundary (Fig. 11(a)) [37]. As the Si increases, eutectic phases begin to appear in the alloys as shown in Fig.…”

Section: Scanning Electron Microscopymentioning

confidence: 99%

“…A number of eutectic silicon grains are clearly uneven and elongated, and the ɑ-Al matrix phase is alienated by the eutectic silicon phase, which is dispersed in chunks. They are needle-like and platelet eutectic Si distributing at the grain boundary which makes the grain boundary coarsens [16,37]. At the eutectic composition, microstructural depiction reveals the main constituent of α-Al dendrites along with the elongated needle-like structure of silicon.…”

Section: Scanning Electron Microscopymentioning

confidence: 99%

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THERMOPHYSICAL PROPERTIES OF HYPOEUTECTIC, EUTECTIC AND HYPEREUTECTIC Al-Si AUTOMOTIVE ALLOYS UNDER AGEING TREATMENT

Razin,

Ahammed,

Khan

et al. 2024

JCTM

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Influence of different levels of silicon under a variety of thermal treatment is investigated on the thermophysical behaviour of Al-Si-Cu-Mg automotive alloys. Conventional cast alloys are subjected to T6 heat treatment for age hardening. Hardness values, thermal conductivity along with microstructural observation under different heat-treated conditions are well thought-out to comprehend the ageing performance and the precipitation behaviour of the alloys. From these investigational results it is indicated that two successive hardening peaks take place in the agedalloys. Ageing sequence consists of different phases like a supersaturated solid solution, GP zones, intermediate βʹʹ, intermetallic βʹ, equilibrium β and the Q phase but GP zones and the metastable phases are most likely responsible for these ageing peaks. Thermal conductivity decreases for these precipitates formation during ageing and increases for relieving the internal stress, dissolution of metastable phase and coarsening the precipitation of the alloys. Addingup of Si to the alloy showed earlier ageing peaks with higher intensities intended for its increasing properties of heterogeneous nucleation and diffusion kinetics. After ageing around at 200°C for four hours the alloys offer the height hardness. Microstructural study reveals that eutectic silicon makes the grain boundary coarsen and beyond the eutectic composition the star-shaped blocky primary Si is formed. Subsequent to ageing at 350oC for one hour the alloys reach completely recrystallized state.

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Section: Scanning Electron Microscopymentioning

confidence: 99%

Section: Scanning Electron Microscopymentioning

confidence: 99%

THERMOPHYSICAL PROPERTIES OF HYPOEUTECTIC, EUTECTIC AND HYPEREUTECTIC Al-Si AUTOMOTIVE ALLOYS UNDER AGEING TREATMENT

Razin,

Ahammed,

Khan

et al. 2024

JCTM

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“…The heat-treatable Al-Cu-Mg alloys exhibit desirable strength and ductility at room and high temperatures. Hence, these alloys can be widely used in aerospace, automobile, and machinery industries for structural applications [1][2][3][4] . The well mechanical properties of the Al-Cu-Mg alloy are induced by the precipitation strengthening mechanism.…”

Section: Introductionmentioning

confidence: 99%

Influence of Natural Aging on Microstructure and Mechanical Properties of Gravity Casting Al-Cu-Mg Alloy

Ding¹,

Ji²,

Kang³

et al. 2023

J. Phys.: Conf. Ser.

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For the Al-5.0Cu-0.8Mg alloy fabricated by gravity casting, the 12h natural aging was added between the solution and artificial aging to study its influence on the microstructure and mechanical properties. The transitional phases form during the natural aging following the solution, leading to a significant increase in microhardness. Meanwhile, this microstructure variation accelerates the formation and growth of stable strengthening phases in the same artificial aging. Unfortunately, the 12 h natural aging added in this work excessively coarsens the precipitation, which results in the mechanical properties reduction including ultimate stress from 332 MPa to 302 MPa, especially the elongation from 8.1% to 3.7%. The results indicate that exploring the favorable match of natural and artificial aging is significant to further finely control the precipitation characteristic, which contributes to better mechanical properties of the Al-Cu-Mg alloy.

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The Impact of Copper on the Mechanical Properties of Cast Motorcycle Cylinder Blocks

Setyawan

et al. 2024

joit

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Enhancing the mechanical properties of cast products can be achieved by adding other elements. This research investigates the effect of copper (Cu) on the mechanical properties of cast motorcycle cylinder blocks, verified through microstructure analysis. Experiments were conducted by adding varying amounts of copper (Cu) at 5%, 10%, and 15%, with a casting temperature of 1010°C using a metal mold. Data collection included hardness testing, tensile strength testing, and microstructure analysis.The results showed that increasing the percentage of copper (Cu) in the cylinder block casting led to significant improvements in mechanical properties. The highest Vickers hardness was achieved with the addition of 15% Cu, measuring 229.23 HV. Similarly, the highest tensile strength was observed with the 15% Cu addition, reaching 104.218 MPa. Microstructure analysis revealed that the casting results predominantly consisted of α Al+θ (CuAl₂)+βSi phases, which were smaller compared to the α Al phase.

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Study on Microstructure Distribution of Al-Cu-Mg Alloy in Squeeze Casting Process

Cited by 3 publications

References 10 publications

THERMOPHYSICAL PROPERTIES OF HYPOEUTECTIC, EUTECTIC AND HYPEREUTECTIC Al-Si AUTOMOTIVE ALLOYS UNDER AGEING TREATMENT

THERMOPHYSICAL PROPERTIES OF HYPOEUTECTIC, EUTECTIC AND HYPEREUTECTIC Al-Si AUTOMOTIVE ALLOYS UNDER AGEING TREATMENT

Influence of Natural Aging on Microstructure and Mechanical Properties of Gravity Casting Al-Cu-Mg Alloy

The Impact of Copper on the Mechanical Properties of Cast Motorcycle Cylinder Blocks

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