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等温时效对Cu_(38)Zr_(46)Al_8Ag_8大块非晶合金结构弛豫影响的内耗研究 被引量：1

Effect of isothermal agingon structural relaxation of Cu_(38)Zr_(46)Al_8Ag_8 bulk amorphous alloys in internal friction
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摘要 采用多功能内耗仪,测定了在5种频率下经不同等温时效处理的Cu38Zr46Al8Ag8大块非晶合金内耗-温度(Q-1-T)曲线。结果表明,经等温时效处理的试样的内耗峰值和峰温均比未经处理的试样低;等温时效温度相同情况下,随着等温时效时间的延长,试样的内耗峰值逐渐减少,对应的内耗峰温降低;在等温时效时间相同的情况下,随着等温时效温度的增加,内耗峰温降低。并利用结构弛豫理论分析了等温时效处理对结构弛豫的影响。 Internal friction instrument was used to investigate internal friction-temperature curve（Q-1-T）and relative modulus-temperature curve（M-T）at 5frequencies for Cu38Zr46Al8Ag8 bulk amorphous alloys annealed with different isothermal aging treatment.It is found that and the sample of the temperature of the Q-1 peak without isothermal aging treatment is higher than the others;under the same aging treatment temperature,the Q-1 peak and the corresponding temperature are dwindling with the increase of aging treatment time;under the same aging treatment time,the temperature of the Q-1 peak is dwindling with the increase of isothermal aging temperature.The effects of isothermal aging treatment on internal friction are analyzed in terms of theory of structural relaxation.
作者 蒋坤 李小蕴 黄中月
机构地区 合肥工业大学材料科学与工程学院
出处 《金属功能材料》 CAS 2015年第4期13-15,共3页 Metallic Functional Materials
基金 国家自然科学基金资助项目(11304073)
关键词 大块非晶合金 等温时效 结构弛豫 内耗 bulk amorphous alloys isothermal aging structural relaxation internal friction
分类号 TG139.8 [一般工业技术—材料科学与工程]
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参考文献8

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二级参考文献7

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共引文献2

同被引文献22

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金属功能材料
2015年 第4期

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