Effect of Annealing Treatment on Cold Formability of AZ31 Sheets

AZ31 판재에서 소둔처리가 상온성형성에 미치는 영향

  • 황범규 (한국기계연구원 부설 재료연구소 변형제어연구그룹) ;
  • 이영선 (한국기계연구원 부설 재료연구소 변형제어연구그룹) ;
  • 문영훈 (부산대학교 기계공학부) ;
  • 김대용 (한국기계연구원 부설 재료연구소 변형제어연구그룹)
  • Published : 2009.10.08

Abstract

The purpose of this paper is to investigate the effect of annealing treatment on cold formability of magnesium alloy sheet AZ31. The AZ31 sheets with three different thickness (1.0t, 1.6t, 2.0t) were annealed at three different temperatures ($345^{\circ}C$, $400^{\circ}C$ and $450^{\circ}C$). The mechanical properties and microstructure evolution of the annealed AZ31 were examined as well as limit dome height (LDH) and compared with those of as received one. The cold formability was enhanced but the strength was deteriorated by the annealing treatment.

Keywords