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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Defects and Properties of Cast Metals IV
Presentation Title Evolution of microstructure and mechanical properties of the as-cast 1030B Al sheet during ultrasound-assisted continuous casting
Author(s) Ripeng Jiang, Wenhao Zhao, Li Zhang, Xiaoqian Li, Shaokang Guan
On-Site Speaker (Planned) Li Zhang
Abstract Scope Continue Casting Direct Rolling (CCDR) is an efficient process for aluminum plates and strips production. However, unlike steel sheet, there is no homogenizing process for the as-cast Al billet before direct rolling. Thus, the quality of the as-cast billet has a great influence on the performance of the final hot-rolled strip. In order to reduce the defects in the microstructure of the as-cast billet, four-source ultrasonic treatment was firstly applied in the continuous casting during the CCDR process of 1030B Al sheet. The evolution of microstructure and mechanical properties of the as-cast 1030B Al sheet under ultrasonication were investigated. Results indicated that the α-Al grains were refined by 30% under ultrasound, which may be attributed to the increased Ti content in the Al matrix by the ultrasonic dispersion. Meanwhile, the mechanical properties of the sheet were also increased after ultrasonic treatment.
Proceedings Inclusion? Planned:

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