Effect of heat treatment on the microstructures and damping properties of biomedical Mg-Zr alloy

Ming Hung Tsai, May Show Chen, Ling Hong Lin, Ming Hong Lin, Ching Zong Wu, Keng Liang Ou, Chih Hua Yu

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48 引文 斯高帕斯(Scopus)

摘要

In this study, we elucidated the effect of heat treatment on the microstructures and damping properties of the biomedical Mg-1 wt% Zr (K1) alloy by optical microscopy, transmission electron microscopy, energy-dispersive X-ray spectrometry, and experimental model analysis. The following microstructural transformation occurred when the as-quenched (AQ, i.e., solution heat treated and quenched) K1 alloy was subjected to aging treatment in the temperature range 200-500 °C: α-Mg → (α-Mg + twindense) → (α-Mg + twinloose) → (α-Mg + α-Zr). This microstructural transformation was accompanied by variations in the damping capacity. The damping properties of the AQ K1 alloy subjected to aging treatment at 300 °C for 16 h were the best among those of the alloys investigated in the present study. The presence of twin structures in the alloy matrix was thought to play a crucial role in increasing the damping capacity of the K1 alloy. Hence, we state that a combination of solution treatment and aging is an effective means of improving the damping capacity of biomedical K1 alloys.
原文英語
頁(從 - 到)813-819
頁數7
期刊Journal of Alloys and Compounds
509
發行號3
DOIs
出版狀態已發佈 - 一月 21 2011

ASJC Scopus subject areas

  • 機械工業
  • 材料力學
  • 材料化學
  • 金屬和合金

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