| 块状非晶合金纳米压痕微区形变的研究 |
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| 引用本文： | 杨飞,邓玉福,杨建林,张微.块状非晶合金纳米压痕微区形变的研究[J].稀有金属材料与工程,2007,36(4):578-582. |
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| 作者姓名： | 杨飞 邓玉福 杨建林 张微 |
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| 作者单位： | 沈阳师范大学,辽宁,沈阳,110034 |
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| 基金项目： | 国家自然科学基金;沈阳师范大学校科研和教改项目 |
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| 摘 要： | 对Zr55A110Ni5Cu30块状非晶合金进行了室温纳米压痕实验，利用扫描电子显微镜、透射电子显微镜揭示了非晶合金的微区形变特征。结果表明：在压痕周围形成离散的剪切带，形变引起了块状非晶合金局部自由体积增加。利用自由体积模型对非晶合金的微区形变机制进行了分析。
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| 关 键 词： | 非晶合金 纳米压痕 自由体积 剪切带 |
| 文章编号： | 1002-185X(2007)04-0578-05 |
| 修稿时间： | 2006-09-11 |
Plastic Deformation of Bulk Metallic Glass Zr55Al10NisCu30 during Nanoindentation |
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| Yang Fei,Deng Yufu,Yang Jianlin,Zhang Wei.Plastic Deformation of Bulk Metallic Glass Zr55Al10NisCu30 during Nanoindentation[J].Rare Metal Materials and Engineering,2007,36(4):578-582. |
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| Authors: | Yang Fei Deng Yufu Yang Jianlin Zhang Wei |
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| Affiliation: | Shenyang Normal University, Shenyang 110034, China |
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| Abstract: | Plastic deformation of bulk metallic glass (BMG) Zr55Al10Ni5Cu30 was investigated by nanoindentation experiments at room temperature. The characters of plastic deformation were studied by means of scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results indicate that the discrete shear bands are formed around the indent and the local free volume is increased in the bulk metallic glass by deformation. The mechanism governing the plastic deformation was discussed in terms of the free volume mode. |
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| Keywords: | metallic glass nanoindentation free volume shear band |
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