Typical mechanisms of external filed applied during TRC of aluminium alloys

Longzhou Meng; Xiaoming Qian; Xue Sheng; Yong Li; Zhaodong Wang

doi:10.1117/12.2638599

29 April 2022 Typical mechanisms of external filed applied during TRC of aluminium alloys

Longzhou Meng, Xiaoming Qian, Xue Sheng, Yong Li, Zhaodong Wang

Proceedings Volume 12255, 2022 International Conference on Optoelectronic Information and Functional Materials (OIFM 2022); 122552W (2022) https://doi.org/10.1117/12.2638599
Event: 2022 International Conference on Optoelectronic Information and Functional Materials (OIFM 2022), 2022, Chongqing, China

Abstract

Typical mechanisms of external filed applied during TRC of aluminium alloys were summarized and discussed. Static magnetic field changed the trajectory of charged particles and formed a spiral around the magnetic force line. The tendency of the solute elements during solidification to segregate in the central area of strip was decreases, leading to the reduced large-area macro-segregation and formation of less micro-segregation defects. The shock wave effect caused by pulsed current field that led to the fragmentation of atomic clusters and the nucleation sites number increased, besides, dendrites could be cracked and the nucleation site could be further raised. Compound field generated electromagnetic force acts on charged particles, the trajectory of charged particles became an ellipse, moving in the direction of the dendrite arm and diminished the central-line segregation. From the perspective of the magnetic energy, a new interpretation direction was proposed, which proved that magnetic energy can promote / inhibit the growth of atomic clusters by matching / exceeding the energy difference between atomic clusters and magnetic energy itself.

Citation Download Citation

Longzhou Meng, Xiaoming Qian, Xue Sheng, Yong Li, and Zhaodong Wang "Typical mechanisms of external filed applied during TRC of aluminium alloys", Proc. SPIE 12255, 2022 International Conference on Optoelectronic Information and Functional Materials (OIFM 2022), 122552W (29 April 2022); https://doi.org/10.1117/12.2638599

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KEYWORDS

Magnetism

Aluminum

Particles

Electromagnetism

Chemical species

Dendrites

Solids

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