논문 국내 국내전문학술지(KCI급) Al-5%Mg계 주조합금의 물성 및 시효경화특성에 미치는 합금원소의 영향
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2010-02
- 저자명 조재익,김정민공동(제1),김현길,박준식
- 학술지명 한국주조공학회지
- 발행처명 한국주조공학회
- 발행국가 국내
- 논문언어 한국어
홈페이지논문 초록 (Abstract)
The microstructure of Al-5%Mg based alloy mainly consists of aluminum matrix with a small amount of AlMn phase. The addition of Sc or Zn to the base alloy significantly improved the as-cast tensile strength, while the addition of Fe deteriorated both strength and ductility. Although the Al-5%Mg based alloy was not heat-treatable, aging hardening could be observed in the case that Sc or Zn was added to the base alloy. TEM analysis showed that very fine AlSc or AlMgZn precipitates were formed after T6 heat treatment, resulting in enhanced strength. The corrosion resistance measured as corrosion potential was found to decrease a little by adding Zn, whereas other alloying elements were not clearly influential