Internal Friction of Hydrogen in Metallic Glasses
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摘要: 使用Bordoni型的儀器在聲頻范圍內研究了鐵鎳基金屬玻璃的低溫含氫內耗,并研究了退火處理對內耗的影響。結果表明低溫含氫內耗是Snoek 型弛豫,并觀察到了反常模量虧損和反常弛豫強度現象,提出τ缺陷增強 Snoek 弛豫模型解釋了反常弛豫強度現象。Abstract: The internal friction of hydrogen at low temperature and the annealing effect on it have been studied in iron-nickel based metallic glasses using Bordoni-type apparatus. The result shows that the internal friction of hydrogen at low temperature is snoek-like relaxation and the abnormal modulus defect and the abnormal relaxation strengh have been observed. The model of enhancement of τ-type defect to snoek-like relaxation is proposed to explain the abnormal relaxation strengh.
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Key words:
- metal glass /
- hydrogen /
- internal friction /
- structure relaxation /
- snoek relaxation
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