논문 국내 국내전문학술지(KCI급) 다이캐스팅용 AL-ZN-MG-FE 합금의 특성에 미치는 ZN 및 MG 첨가의 영향
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2013-08
- 저자명 신제식,김정민공동(참여),김기태,임영석,고세현
- 학술지명 한국주조공학회지
- 발행처명 한국주조공학회
- 발행국가 국내
- 논문언어 한국어
홈페이지논문 초록 (Abstract)
The effects of alloying elements on the solidification characteristics, microstructure, thermal conductivity, and tensile strength of Al-Zn-Mg-Fe alloys were investigated for the development of high strength and high thermal conductivity aluminium alloy for die casting. The amounts of Zn and Mg in Al-Zn-Mg-Fe alloys had little effect on the liquidus / solidus temperature, the latent heat for solidification, the energy release for solidification and the fluidity of Al-Zn-Mg-Fe alloys. Thermo-physical modelling of Al-Zn-Mg-Fe alloys by the JMatPro program showed MgZn2, AlCuMgZn and Al3Fe phases in the microstructure of the alloys. Increased amounts of Mg in Al-Zn-Mg-Fe alloys resulted in phase transformation, such as MgZn2⇒MgZn2 + AlCuMgZn⇒AlCuMgZn in the microstructure of the alloys. Increased amounts of Zn and Mg in Al-Zn-Mg-Fe alloys resulted in a gradual reduction of the thermal conductivity of the alloys. Increased amounts of Zn and Mg in Al-Zn-Mg-Fe alloys had little effect on the tensile strength of the alloys.