한국재료학회지 (Korean Journal of Materials Research)

  • 제26권8호
  • /
  • Pages.444-448
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  • 2016
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  • 1225-0562(pISSN)
  • /
  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
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Al 2013-T8 합금에서 Zr 첨가에 따른 기계적 특성 분석

Analysis of Mechanical Properties with Addition of Zr in Al 2013-T8 Alloy for Galvanizing Equipment

  • 백민숙 (순천대학교 미래전략신소재공학과) ;
  • 조사현 (순천대학교 미래전략신소재공학과) ;
  • 박만복 (차세대 전략산업용 희유자원 실용화센터) ;
  • 윤동주 (차세대 전략산업용 희유자원 실용화센터) ;
  • 허기복 ((주)삼우ECO)
  • Baek, Min-Sook (Department of future strategic new Materials Engineering, Sunchon National University) ;
  • Cho, Sa-Hyeon (Department of future strategic new Materials Engineering, Sunchon National University) ;
  • Park, Man-Bok (Center for Practical Use of Rare Materials, Sunchon National University) ;
  • Yoon, Dong-Joo (Center for Practical Use of Rare Materials, Sunchon National University) ;
  • Heo, Ki-Bok (SAMWOO ECO., Ltd.)
  • 투고 : 2016.04.19
  • 심사 : 2016.07.22
  • 발행 : 2016.08.27
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초록

In this study, the recently developed Al 2013 alloy was T8-tempered and, to improve the strength and corrosion-resistance, slight amounts of Zr of 0.2 wt% and 0.5 wt%, respectively, were added and the mechanical properties were analyzed. For microstructure and precipitate analysis, OM observation, XRD analysis, and TEM analysis were performed, and for the mechanical property analysis, hardness and tensile strength tests were done. Also, in order to determine the corrosion rate according to the Zr content, a potentiodynamic polarization test was performed and the properties were compared and analyzed. The size of the precipitate varied with the content of Zr and was finest at Zr content of 0.2 wt%; it grew larger at 0.5 wt%, at which point the hardness value accordingly showed the same trend. On the other hand, as calculated from the aspect of chemical bonding among atoms, it was confirmed that the tensile strength and the corrosion-resistance increased with the same trend.

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