Effect of 2024 Al Alloy Insert on the Grain Refinement of a 2024 Al Alloy Prepared via Insert Mold Casting

Zhu, Cheng; Zhao, Zhihao; Wang, Gaosong; Zhu, Qingfeng; Wang, Shiliang

doi:10.3390/met9101126

Cited by 7 publications

(2 citation statements)

References 64 publications

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“…However, the purpose of that method is to obtain an excellent metallurgical bonding between the insert and the melt. Our previous study found that inserting a cold 2024 Al alloy rod into the 2024 Al melt during mold casting can refine the grains [17] . Eskin et al [18] confirmed the grain refinement effect of introduction the same-alloy rod into the melt in a standard TP-1 mold casting and achieved significant grain refinement.…”

Section: Structures and Macrosegregation Of A 2024 Aluminum Alloy Fabricated By Direct Chill Casting With Double Cooling Fieldmentioning

confidence: 99%

Structures and macrosegregation of a 2024 aluminum alloy fabricated by direct chill casting with double cooling field

et al. 2022

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Large-size aluminum alloy ingots produced by traditional direct chill (DC) casting, especially the 2xxx and 7xxx series, often have defects such as inhomogeneous structure, macrosegregation, and hot cracks [1][2][3][4] . Although adding grain refiners improves the quality of largesize ingots, it could lead to agglomeration of nucleating particles and fading effect [5][6] . In addition, physical methods, including mechanical stirring [7][8] , ultrasonic vibration [9] , and electromagnetic stirring [10] , are not easy to apply in the DC casting process because of the expensive and specific equipment requirements.Recently, several new methods have been developed by adding intercooling in the DC casting process. For instance, an in-mold cooler with a cooling end made of highly pure graphite can be inserted into the melt to absorb and transfer the heat during the liquid or gas flow in the cooler [11][12] . Another way to enhance

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Section: Structures and Macrosegregation Of A 2024 Aluminum Alloy Fabricated By Direct Chill Casting With Double Cooling Fieldmentioning

confidence: 99%

Structures and macrosegregation of a 2024 aluminum alloy fabricated by direct chill casting with double cooling field

et al. 2022

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“…Although these measures can accelerate the utilization of TiO 2 to visible light, it is an urgent problem to solve the free charge recombination caused by light excitation in a single semiconductor. Extensive research has demonstrated the preparation of two types of semiconductors with wide and narrow band gaps to fabricate heterostructure materials, which exhibit superior photocatalytic activity compared to individual catalytic materials [22][23][24]. Consequently, TiO 2 generally construct heterojunctions with other narrow band gap semiconductors that align with its band positions, which can transfer the light response rang from the ultraviolet region to the visible region.…”

Section: Introductionmentioning

confidence: 99%

Synergistic enhancement of photocatalytic properties in ternary Cu2O/TiO2@Ti3C2Tx MXene composites

Fang,

Xu,

Tan

et al. 2024

Preprint

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Water pollution has always been an inescapable challenge in the development of human society. Photocatalytic technology is regarded to be a promising strategy for water pollution control. In this work, a novel Cu2O/TiO2@Ti3C2Tx MXene photocatalyst is constructed to obtain diverse electron transport pathways, thereby promoting charge separation and achieving superior photocatalytic performance. The synergistic effects of composite photocatalytic materials are instrumental in degrading organic dyes under visible light. The successful construction of a heterojunction structure between Cu2O and in situ generated TiO2 mitigates charge recombination post-separation, significantly extending the lifetime of photogenerated carriers. Additionally, the incorporation of Ti3C2Tx serves as an effective conductive medium, facilitating the separation and transfer of photogenerated charges within the material. Therefore, the Cu2O/TiO2@Ti3C2Tx MXene composites exhibit exceptional photocatalytic activity, showcasing the best performance, achieving a degradation rate of 71.5% after 3 h of visible light irradiation. These findings underscore the potential of this new compound in enhancing photocatalytic organic degradation, highlighting the promising application prospects of photocatalytic materials.

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Squeeze Overcasting of Bimetallic Composite Al2026/Al–4.5%Cu with Acidic Quenching in Aging Treatment: Characterization of Mechanical Properties and Joint Interface Microstructure

Ahmed,

Ali,

Raza

et al. 2023

Inter Metalcast

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Effect of 2024 Al Alloy Insert on the Grain Refinement of a 2024 Al Alloy Prepared via Insert Mold Casting

Cited by 7 publications

References 64 publications

Structures and macrosegregation of a 2024 aluminum alloy fabricated by direct chill casting with double cooling field

Structures and macrosegregation of a 2024 aluminum alloy fabricated by direct chill casting with double cooling field

Synergistic enhancement of photocatalytic properties in ternary Cu2O/TiO2@Ti3C2Tx MXene composites

Squeeze Overcasting of Bimetallic Composite Al2026/Al–4.5%Cu with Acidic Quenching in Aging Treatment: Characterization of Mechanical Properties and Joint Interface Microstructure

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