발간논문

Home > KJMM 논문 > 발간논문

Vol.39, No.10, 1136 ~ 1142, 2001
Title
Solidification : Effects of Electromagnetic Vibration on Solidification Structure of A1 - Si Alloys
이준수Jun Su Lee,오영주Young Joo Oh,조영환Young Whan Cho,정순효Soon Hyo Chung,김도향Do Hyang Kim
Abstract
The effects of electromagnetic vibration on solidification structures were investigated in Al-Si alloys. In the hypo-eutectic alloy, the grain size decreased and dendrites were fragmented into globoid with increasing frequency(Hz) and amplitude(A) of the electromagnetic vibration. This would be resulted from the disappearance of the constitutional supercooling and remelting of dendrite stems by the vibration of liquid phase. In the hyper-eutectic alloy, it is found that the variation of the vibration frequency did not change the particle size of Si primary crystals significantly. As the vibration intensity increased, the segregation of Si primary near the side wall increased and the Si crystals in eutectic structure have changed from flake to fibrous morphology.
Key Words
| PDF
대한금속∙재료학회 │ (06633) 서울시 서초구 서초대로 56길 38 대한금속∙재료학회 회관 (서초1동 1666-12번지)
Tel : 070-4266-1646 │ FAX : 02-557-1080 │ E-mail : metal@kim.or.kr
Copyright ⓒ 2013 사단법인 대한금속∙재료학회 All rights reserved.