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Effects of Alternating Magnetic Field on the Hot Tearing Susceptibility and Microstructure of Al-5Cu Alloy

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Abstract

The influence of alternating magnetic field on hot tearing susceptibility (HTS) and microstructure of Al-5Cu alloy were studied using hot tearing test system and differential thermal analysis test. The Clyne-Davies model was used to evaluate the HTS of the alloy quantitatively under different magnetic current intensities (0A, 5A, 10A, 15A). The experimental results show that the HTS and microstructure of Al-5Cu alloy can be affected by imposing the alternating magnetic field during alloy solidification. In the range of 0–10A, with the increase of alternating magnetic field current intensity, there is strong forced convection in the molten metallic pool under the action of electromagnetic force, which leads to the fragmentation of dendrites and the grains refinement, optimizes the feeding channels between grains and reduces the HTS of the alloy. When the alternating magnetic field intensity is 15A, the grains become coarser due to the thermal effect of electromagnetic field, resulting in the deterioration of the feeding channel and the increase of HTS.

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Acknowledgements

The authors would like to acknowledge the financial support from Innovation Talent Program in Sciences and Technologies for Young and Middle-aged Scientists of Shenyang (RC200414), Liaoning BaiQianWan Talents Program, Scientific research fund project of Liaoning Provincial Department of Education (LJGD2020008), Liaoning Revitalization Talents Program (XLYC1907007), High Level Innovation Team of Liaoning Province (XLYC1908006), Youth Project of Liaoning Education Department (Nos. LQGD2019002 and LJGD2019004), Department of Science and Technology of Liaoning Province: (Grant Number 2019-ZD-0210), Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science (2019JH3/30100014).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, 110870, China

    Minglong Du, Feng Wang, Xudong Du, Pingli Mao, Zhi Wang, Le Zhou & Zheng Liu

  2. Key Laboratory of Magnesium Alloys and Processing Technology of Liaoning Province, Shenyang, 110870, China

    Minglong Du, Feng Wang, Xudong Du, Wei Wang, Pingli Mao, Zhi Wang, Le Zhou & Zheng Liu

  3. School of Science, Shenyang University of Technology, Shenyang, 110870, China

    Wei Wang

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  1. Minglong Du
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Correspondence to Feng Wang.

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Du, M., Wang, F., Du, X. et al. Effects of Alternating Magnetic Field on the Hot Tearing Susceptibility and Microstructure of Al-5Cu Alloy. Inter Metalcast 17, 373–385 (2023). https://doi.org/10.1007/s40962-022-00781-1

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