Phase transformation behaviors can modulate the stress distribution under loading and enhance the plasticity and work hardening ability of amorphous alloy composite. Effect of pre-plastic deformation on the phase transformation kinetics and the mechanical properties of the TiZr-based amorphous alloy composite were studied systematically in the current work. The plasticity of the composites was improved by lateral pre-compression deformation and pre-tensile deformation. However, the plasticity reduced after axial pre-compression deformation. These results were attributed to the distinguish of the directions between the pre-existing shear bands formed during pre-plastic deformation and new developed shear bands during the final compression, which can favor the severe interaction of shear bands.

相变行为可以调节载荷作用下的应力分布，增强非晶态合金复合材料的塑性和加工硬化能力。在当前工作中，系统地研究了预塑性变形对TiZr基非晶合金复合材料的相变动力学和力学性能的影响。复合材料的可塑性通过横向预压缩变形和预拉伸变形得以改善。但是，轴向预压缩变形后塑性降低。这些结果归因于在预塑性变形期间形成的既有剪切带与最终压缩期间新形成的剪切带之间的方向有所区别，这可能有利于剪切带的剧烈相互作用。