Mg-based metallic glass / titanium interpenetrating phase composite with high mechanical performance
Mg-based metallic glass / titanium interpenetrating phase composite with high mechanical performance
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DOI：
10.1063/1.3257699
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发表时间：
2009-10
影响因子：
4
通讯作者：
Yu Sun;Haoran Zhang;A. M. Wang;H. Fu;Z. Hu;C. Wen;P. Hodgson
中科院分区：
文献类型：
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作者：
Yu Sun;Haoran Zhang;A. M. Wang;H. Fu;Z. Hu;C. Wen;P. Hodgson
我们报道了一种镁基金属玻璃/钛互穿相复合材料，其中的组成相形成了一个均匀的互连网络。多孔钛彻底抑制了剪切带的扩展，促进了剪切带的分叉和相交。均匀的相分布促进了规则分布的局部剪切变形，导致了复合材料的均匀变形。此外，互穿相结构引入了金属玻璃和钛之间的相互增强。因此，该复合材料具有优良的力学性能，其压缩断裂强度为1783 Mpa，断裂应变为31%。
We report an Mg-based metallic glass/titanium interpenetrating phase composite in which constituent phases form a homogeneously interconnected network. The porous titanium constrains shear bands propagation thoroughly and promotes shear bands branching and intersection subsequently. The homogeneous phase distribution promotes regularly distributed local shear deformation and leads to a uniform deformation for the composites. Moreover, the interpenetrating phase structure introduces a mutual-reinforcement between metallic glass and titanium. Therefore, the composite exhibits excellent mechanical performance with compressive fracture strength of 1783 MPa and fracture strain of 31%.