| Indentation creep behaviors of Mg61Cu28Gd11 and （Mg61Cu28Gd11）99.5Sb0.5 bulk metallic glasses at room temperature |
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| 引用本文： | 孙颖迪,李子全,刘劲松,从孟启,秦静雅. Indentation creep behaviors of Mg61Cu28Gd11 and （Mg61Cu28Gd11）99.5Sb0.5 bulk metallic glasses at room temperature[J]. 中国稀土学报(英文版), 2011, 0(3): 253-258 |
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| 作者姓名： | 孙颖迪 李子全 刘劲松 从孟启 秦静雅 |
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| 作者单位： | College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics; |
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| 基金项目： | supported by the Natural Science Foundation of Jiangsu Province(SBK200922430) |
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| 摘 要： | The room temperature creep behaviors of Mg61Cu28Gd11 and(Mg61Cu28Gd11)99.5Sb0.5 bulk metallic glasses(BMGs) were revealed by means of nanoindentation technique.The creep mechanism was explored by characterization of creep rate sensitivity,creep compliance and retardation spectra.The results showed that the experimental creep curves could be well described by a generalized Kelvin model.The low creep rate sensitivity of both Mg-based BMGs indicated that their room temperature creep was dominated by localized shear flow.In addition,the(Mg61Cu28Gd11)99.5Sb0.5 glassy alloy exhibited lower creep rate sensitivity,creep compliance and milder retardation peak,indicating its higher creep-resistance and less relaxed state.Furthermore,the creep retardation spectrum consisted of two relatively separated peaks with the well defined characteristic relaxation times.
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| 关 键 词： | nanoindentation Mg-based bulk metallic glass creep generalized Kelvin model rare earths |
Indentation creep behaviors of Mg_(61)Cu_(28)Gd_(11) and (Mg_(61)Cu_(28)Gd_(11))_(99.5)Sb_(0.5) bulk metallic glasses at room temperature |
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| SUN Yingdi,LI Ziquan,LIU Jinsong,CONG Mengqi,QIN Jingya. Indentation creep behaviors of Mg_(61)Cu_(28)Gd_(11) and (Mg_(61)Cu_(28)Gd_(11))_(99.5)Sb_(0.5) bulk metallic glasses at room temperature[J]. Journal of Rare Earths, 2011, 0(3): 253-258 |
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| Authors: | SUN Yingdi LI Ziquan LIU Jinsong CONG Mengqi QIN Jingya |
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| Affiliation: | SUN Yingdi,LI Ziquan,LIU Jinsong,CONG Mengqi,QIN Jingya(College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | The room temperature creep behaviors of Mg61Cu28Gd11 and(Mg61Cu28Gd11)99.5Sb0.5 bulk metallic glasses(BMGs) were revealed by means of nanoindentation technique.The creep mechanism was explored by characterization of creep rate sensitivity,creep compliance and retardation spectra.The results showed that the experimental creep curves could be well described by a generalized Kelvin model.The low creep rate sensitivity of both Mg-based BMGs indicated that their room temperature creep was dominated by localized ... |
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| Keywords: | nanoindentation Mg-based bulk metallic glass creep generalized Kelvin model rare earths |
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