동력기계공학회지 (Journal of Power System Engineering)

  • 제18권4호
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  • Pages.66-71
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  • 2014
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  • 2713-8429(pISSN)
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  • 2713-8437(eISSN)
한국동력기계공학회 (The Korean Society for Power System Engineering)
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열간 압연 한 Mg합금의 미세조직과 감쇠능에 미치는 열처리의 영향

Effect of Heat Treatment on the Microstructure and Damping Capacity of Hot Rolled Magnesium Alloys

  • Lee, Gyu-Hyun (Department of Metallurgical Engineering, Pukyong National University) ;
  • Kim, Kwon-Hoo (Department of Metallurgical Engineering, Pukyong National University) ;
  • Kang, Chang-Yong (Department of Metallurgical Engineering, Pukyong National University)
  • 투고 : 2013.10.23
  • 심사 : 2014.06.16
  • 발행 : 2014.08.31
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초록

In this study, effect of heat treatment on the microstructure and damping capacity of hot rolled magnesium alloys was investigated. The microstructure of hot rolled magnesium consisted of dendrite structure and $Mg_{17}Al_{12}$ compounds precipitated along the grain boundry. The dendrite structure was dissipated and $Mg_{17}Al_{12}$ compounds was decomposed by annealing treatment, and then they dissolved in ${\alpha}-Mg$. With an increasing the annealing temperature and time, damping capacity was slowly increased by the growth of grain size and decreasing of defects induced by hot rolling. Two kinds of magnesium alloys AZ 31 and AZ 61 after annealing showed no difference in damping capacity.

키워드

참고문헌

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피인용 문헌

  1. Internal Friction Behavior in AZ31 Magnesium Alloy after Annealing Treatment vol.22, pp.1, 2018, https://doi.org/10.9726/kspse.2018.22.1.087