Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Strain Amplitude Dependence of Damping Capacity in Mg-AI-Si Alloy

Mg-Al-Si 합금에서 진동감쇠능의 변형진폭 의존성

  • Jun, Joong-Hwan (Advanced Fusion Process R&D Group, Korea Institute of Industrial Technology)
  • 전중환 (한국생산기술연구원 융합신공정연구그룹)
  • Received : 2011.03.08
  • Accepted : 2011.04.25
  • Published : 2011.05.30
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Abstract

Change in damping capacity with strain amplitude was studied in Mg-Al-Si alloy in as-cast, solution-treated and aged states, respectively. The as-cast microstructure of the alloy is characterized by eutectic ${\beta}$($Mg_{17}Al_{12}$) phase and Chinese script type $Mg_2Si$ particles. The solution treatment dissolved the ${\beta}$ phase into the matrix, while the aging treatment resulted in the distribution of continuous and discontinuous type ${\beta}$ precipitates. The solution-treated microstructure showed better damping capacity than as-cast and aged microstructures both in strain-dependent and strain-independent damping regions. The decrease in second-phase particles which weakens the strong pinning points on dislocations and distribution of solute atoms in the matrix, would be responsible for the enhanced damping capacity after solution treatment.

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References

  1. B. L. Mordike and T. Ebert : Mater. Sci. Eng., A 302 (2001) 37. https://doi.org/10.1016/S0921-5093(00)01351-4
  2. S. Celotto : Acta Mater., 48(2000) 1775. https://doi.org/10.1016/S1359-6454(00)00004-5
  3. E. Cerri and S. Barbagallo : Mater. Lett., 56 (2002) 716. https://doi.org/10.1016/S0167-577X(02)00601-8
  4. P. Zhang : Scripta Mater., 52 (2005) 277. https://doi.org/10.1016/j.scriptamat.2004.10.017
  5. W. Blum, P. Zhang, B. Watzinger, B. V. Grossmann and H. G. Haldenwanger : Mater. Sci. Eng. A, 324 (2002) 141. https://doi.org/10.1016/S0921-5093(01)01296-5
  6. S. Barbagallo, P. Cavaliere and E. Cerri : Mater. Sci. Eng. A, 367 (2004) 9. https://doi.org/10.1016/j.msea.2003.09.101
  7. S. Spigarelli, D. Ciccarelli and E. Evangelista : Mater. Lett., 58 (2004) 460. https://doi.org/10.1016/S0167-577X(03)00525-1
  8. E. Evangelista, E. Gariboldi, O. Lohne and S. Spigarelli : Mater. Sci. Eng. A, 387-389 (2009) 403.
  9. E. Gariboldi and S. Spigarelli : Mater. Design, 24 (2003) 445. https://doi.org/10.1016/S0261-3069(03)00065-7
  10. L. Liao, X. Zhang and H. Wang : Mater. Lett., 59 (2005) 2702. https://doi.org/10.1016/j.matlet.2005.03.055
  11. A. Riviere : J. Alloy Comp., 355 (2003) 201. https://doi.org/10.1016/S0925-8388(03)00287-1
  12. D. Duly, J. P. Simon and Y. Brechet : Acta Metall. Mater., 43 (1994) 101.
  13. A. Granato and K. Lücke : J. Appl. Phys., 27 (1956) 583. https://doi.org/10.1063/1.1722436
  14. A. Granato and K. Lücke : J. Appl. Phys., 27 (1956) 789. https://doi.org/10.1063/1.1722485
  15. J. Göken and W. Riehemann : Mater. Sci. Eng. A, 324 (2002) 127. https://doi.org/10.1016/S0921-5093(01)01294-1
  16. Z. Zhang, X. Zeng and W. Ding : Mater. Sci. Eng. A, 392 (2005) 150. https://doi.org/10.1016/j.msea.2004.09.056