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Internal Friction Behavior in AZ31 Magnesium Alloy after Annealing Treatment

AZ31 마그네슘 합금의 어닐링 이후 내부마찰 거동

  • Kwak, Juho (Marine Convergence Design Co-work, Pukyong National University) ;
  • Kang, Changyong (Department of Metallugical Engineering, Pukyong National University) ;
  • Kim, Kwonhoo (Department of Metallurgical Engineering, Pukyong National University)
  • 곽주호 (부경대학교 마린융합디자인협동과정) ;
  • 강창룡 (부경대학교 금속공학과) ;
  • 김권후 (부경대학교 금속공학과)
  • Received : 2018.01.17
  • Accepted : 2018.02.22
  • Published : 2018.02.28

Abstract

Specimens were machined out from hot-rolled AZ31 magnesium alloy, and deformed at 623K with rolling reduction of 30%. After hot rolling, specimens were annealed at various range of temperature and time. In this study, static recrystallization was occurred during heat treatment, however, variation of main component and intensity of texture was not revealed. The results of microstructure observation, damping capacity test and dislocation mechanism indicated that increasing of damping capacity was caused by grain growth. It means that grain size is effective factor to damping capacity.

Keywords

References

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