Shear stability of metallic glasses
Shear stability of metallic glasses
复制标题
金属玻璃的剪切稳定性
DOI：
10.1016/j.ijplas.2010.08.004
复制
发表时间：
2011-04
影响因子：
9.8
通讯作者：
Shen, J.
中科院分区：
文献类型：
--
作者：
Wu, F. F.;Zheng, W.;Wu, S. D.;Zhang, Z. F.;Shen, J.
研究了试样尺寸对不同金属玻璃剪切变形和压缩塑性的影响。实验结果表明，Zr基、Ti基、Fe基和Mg基金属玻璃的变形和断裂行为与试样尺寸和机械刚度密切相关，当试样宽度为1.0mm时，Zr基金属玻璃具有超高压缩塑性。研究还发现，样本尺寸会显着影响剪切带中耗散的弹性能密度：随着试样尺寸的减小和机器刚度的增大，金属玻璃剪切带中耗散的弹性能密度显著减小，剪切变形趋于稳定，导致韧性金属玻璃塑性的提高和脆性金属玻璃从碎裂断裂向剪切断裂的转变。这一发现对现有金属玻璃的潜在应用和设计具有更好机械性能的新金属玻璃具有重要意义。
The effect of sample size on the shear deformation and compressive plasticity of different metallic glasses were investigated. The experimental results showed that the deformation and fracture behaviors of samples prepared from chemically identical Zr-, Ti-, Fe-, or Mg-based metallic glass ingots were strongly dependent on the sample size and machine stiffness, and a super-high compressive plasticity was achieved in the Zr-based metallic glasses with sample size of 1.0mm in width. It is also found that the sample size can significantly influence the density of elastic energy dissipated in the shear band: with sample size decreasing and machine stiffness increasing, the density of the elastic energy dissipated in the shear band of metallic glasses is prominently decreased, thus the shear deformation turns to be more stable, resulting in the improvement of plasticity in ductile metallic glasses and the transition from fragmentation fracture to shear fracture in brittle metallic glasses. This finding is important for the potential applications of the present metallic glasses and for designing new metallic glasses with better mechanical properties.
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影响因子：
3.7
作者：
Li, Qi-Kai;Li, Mo
通讯作者：
Li, Mo
剪切越多，块体金属玻璃的剪切带和热影响区越厚
影响因子：
2.7
作者：
Zhang, Z.F.;Sui, M.L.;Xiao, N.M.;Wen, J.;Guo, H.
通讯作者：
Guo, H.
DOI：
--
发表时间：
2004-05
期刊：
--
影响因子：
--
作者：
W. Callister;D. Rethwisch
通讯作者：
W. Callister;D. Rethwisch
影响因子：
3.6
作者：
Co;Nb;Bulk Metallic Glass;Fu-Fa Wu;Zhefeng Zhang;Scott Bao-Long Shen;Xing-Yuan Mao;J. Eckert;Prof. B. L. Shen;Prof. S. X. Mao;Prof. J. Eckert;T. Dresden
通讯作者：
Co;Nb;Bulk Metallic Glass;Fu-Fa Wu;Zhefeng Zhang;Scott Bao-Long Shen;Xing-Yuan Mao;J. Eckert;Prof. B. L. Shen;Prof. S. X. Mao;Prof. J. Eckert;T. Dresden
DOI：
10.1002/9781118801017.ch7.10
发表时间：
2021-02
期刊：
Encyclopedia of Glass Science, Technology, History, and Culture
影响因子：
--
作者：
D. V. Louzguine-Luzgin;A. Inoue
通讯作者：
D. V. Louzguine-Luzgin;A. Inoue