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采用真空压力浸渗技术了制备金属Ti/Mg基非晶双连续相复合材料,系统研究了其准静态和动态力学行为。并借助XRD、SEM等技术分析了该复合材料的结构和断口形貌。研究发现,该复合材料具有优异的综合力学性能,强度优于基体Mg基非晶合金和增强相Ti骨架。动态载荷下,应变速率的变化对复合材料的性能和断口形貌具有显著的影响,随应变速率的增大,复合材料的强度逐渐升高,断口上非晶相的粘滞流变现象更加明显。
The vacuum impregnation technique was used to prepare metallic Ti / Mg-based amorphous bicontinuous composites. The quasi-static and dynamic mechanical behaviors of the composites were studied systematically. The structure and fracture morphology of the composites were analyzed by XRD, SEM and other techniques. The study found that the composite has excellent mechanical properties, strength better than the matrix of Mg-based amorphous alloy and reinforcing phase Ti framework. Under dynamic loading, the change of strain rate has a significant effect on the properties and the fracture morphology of the composites. With the increase of strain rate, the strength of the composites gradually increases, and the viscous rheology of the amorphous phase becomes more obvious .