논문 국내 국내전문학술지(KCI급) Mg-3%Zn-0.5%Sn계 판재합금의 기계적 성질과 성형성에 미치는 미량합금원소의 영향
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2008-03
- 저자명 김기태,김정민공동(교신),박준식,김하영
- 학술지명 열처리공학회지
- 발행처명 한국열처리공학회
- 발행국가 국내
- 논문언어 한국어
홈페이지논문 초록 (Abstract)
A variety of minor alloying elements such as Zr, Sr, Y, and Gd were added to Mg-3%Zn-0.5%Sn base alloy to form various fine precipitates and their effects on the microstructure, tensile properties, and sheet metal formability were investigated. Various very fine precipitates along with fine second phases were observed by the additions. It was found that Zr or Gd additive has a role to suppress the grain coarsening of alloy sheets during the hot working process. The Zr-added alloy showed the highest tensile elongation at $250^{\circ}C$ whereas the Gd-added alloy exhibited the best sheet metal forming characteristics in terms of CCV (conical cup value) and spring-back tendency.