非晶合金的滞弹性和粘弹性内耗

非晶合金的滞弹性和粘弹性内耗 THE ANELASTIC AND VISCOELASTIC INTERNAL FRICTION IN AMORPHOUS ALLOYS 卢长勋 first-author 王子孝 石展之 本文结合Fe S i 2.7 B 13 C 2.6 及Pd S i 17.5 两种非晶合金内耗及应变弛豫实验探索室温到（Tg-100K）温区内耗的唯象描述和微观机制。首次证实非晶合金在结构弛豫阶段的内耗不仅具有滞弹性性质,且具有粘弹性性质。提出了滞弹性应变和粘弹性应变模型,推导出激活能谱及原态,退火态和等温内耗表达式。理论分析与实验结果相符。 The phenomenological explanation and microscopic mechanism of internal friction of amorphous alloys from room temperature up to （Tg-100K） are investigated. We first propose that during structural relaxation the internal friction can be divided into two parts: anelastic and Viscoelastic ones. The microscopic models are proposed. The activation energy spectrum and the equations of internal friction for as-received, annealed and isothermal state are deduced. The theoretical analyses agree well with experimental results. 非晶合金 内耗 滞弹性 粘弹性 静力应变弛豫 amorphous alloy internal friction anelasticity viscoelasticity static strain relaxation 中国科学院科学基金 1987-04-01 2021-04-01 4