ZrCu-based bulk metallic glass composites with large strain-hardening capability
ZrCu-based bulk metallic glass composites with large strain-hardening capability
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DOI：
10.1016/j.msea.2015.04.027
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发表时间：
2015-06
期刊：
影响因子：
6.4
通讯作者：
F. Wu;K. Chan;S. H. Chen;S. Jiang;G. Wang
中科院分区：
文献类型：
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作者：
F. Wu;K. Chan;S. H. Chen;S. Jiang;G. Wang
具有亚稳B2相的ZrCu基非晶复合材料在拉伸过程中发生了较大的塑性变形。研究发现，B2相能有效地促进应力集中点的密度，增强多剪切带的形成和相互作用，从而显著地稳定了金属玻璃复合材料的拉伸塑性变形。基于归一化应变硬化率的概念，确定了金属玻璃复合材料拉伸塑性变形稳定的临界体积分数。
A large tensile plastic deformation was achieved in ZrCu-based metallic glass composites with a metastable B2 phase. It was found that the B2 phase can effectively promote the density of the stress concentration sites and enhance the formation and interaction of multiple shear bands, which significantly stabilize the tensile plastic deformation of metallic glass composites. Based on the concept of the normalized strain-hardening rate, the critical volume fraction for the stable tensile plastic deformation of metallic glass composites was determined.