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pISSN : 1598-706X / eISSN : 2288-8381


한국주조공학회지 (39권5호 94-101)

Evaluation of Microstructure and Formability of Rheocasting Aluminum Alloy by Inclined Cooling Plate

경사냉각판을 이용한 반응고 알루미늄 합금의 미세조직 및 성형성 평가

Bum-Kyu Hwang*,**, Soon-Kook Kim***, Duck-Hyun Kim**** and Su-Gun Lim**,†

*MAGMA Engineering Korea Co., LTD., Seoul 07997, Republic of Korea **Dept. of Metallurgical and Materials Engineering, ReCAPT, Gyeongsang National Univ., Jinju 52828, Republic of Korea ***Dept. of Advanced Material Engineering, Dong-Eui Univ., Busan 47340



This study investigated the microstructure properties of A356 and AC8A alloys with a rheocasting mold using an inclined cooling plate. In addition, a formability evaluation was performed according to the solid fraction. Regardless of the position, the overall microstructure was shown to be uniform and a finer crystal structure was obtained as the solid fraction increased. The study confirmed that the molding pattern changed according to the solid fraction and that the spherical α-Al and eutectic α were identified. The results of the formability according to the solid fraction of A356 and AC8A alloys were similar to the simulation results.


Cooling plate, Rheocasting, A356 and AC8A alloys