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
PDF