Modeling deformation behavior of Cu-Zr-Al bulk metallic glass matrix composites
Modeling deformation behavior of Cu-Zr-Al bulk metallic glass matrix composites
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DOI：
10.1063/1.3222973
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发表时间：
2009-09-07
影响因子：
4
通讯作者：
Eckert, J.
中科院分区：
文献类型：
--
作者：
Pauly, S.;Liu, G.;Eckert, J.
在当前的研究工作中，我们制备了一种源自形状记忆合金CuZr的原位Cu(47.5)Zr(47.5)Al(5)大块金属玻璃基复合材料。我们使用一个强度模型，该模型考虑了逾渗以及一种三微观结构单元体方法，分别用于理解晶体相在压缩载荷下对屈服应力和断裂应变的影响。由于晶体相的马氏体相变而产生的本征加工硬化能力也使得复合材料具有显著的加工硬化。
In the present work we prepared an in situ Cu(47.5)Zr(47.5)Al(5) bulk metallic glass matrix composite derived from the shape memory alloy CuZr. We use a strength model, which considers percolation and a three-microstructural-element body approach, to understand the effect of the crystalline phase on the yield stress and the fracture strain under compressive loading, respectively. The intrinsic work-hardenability due to the martensitic transformation of the crystalline phase causes significant work hardening also of the composite material.