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Microstructure and Interfacial Shear Strength in W/(Zr55Cu30Al10Ni5)(100-x)Nb-x Composites

机译:W /(Zr55Cu30A10Ni5)(100-X)Nb-X复合材料中的微观结构和界面剪切强度

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摘要

In the present study, (Zr55Cu30Al10Ni5)(100-x)Nb-(x= 0,Nb-1,Nb-2,Nb-3) bulk metallic glass matrix/tungsten wire composites were fabricated by a gas pressure infiltration process at temperature 950 degrees C for 5 min. Microstructural studies and mechanical behaviors of the materials have been investigated by scanning electron microscopy, transmission electron microscopy and pullout tests. The mechanical results showed that the interface shear strength in the composite sample with X = 2 increased more than twice compared to the composite sample with X = 0. Based on the microstructural results, the addition of two atomic percent Nb in the matrix composite causes an increase in the diffusion band thickness during the melt infiltration and change in the interface fracture mode as a result of pullout test.
机译:在本研究中,通过温度气体压力渗透过程制造(100-x)Nb-(100-x)Nb-(100-x)Nb-(x = 0,Nb-1,Nb-3)块状金属玻璃基质/钨丝复合材料 950℃5分钟。 通过扫描电子显微镜,透射电子显微镜和拉出试验研究了材料的微观结构研究和机械行为。 机械结果表明,基于微观结构结果,基于微观结构结果,复合样品与X = 0的复合样品相比,复合样品中的界面剪切强度增加了两次以上。基质复合材料中的两个原子百分比Nb引起 在熔体渗透期间的扩散带厚度增加,并由于拉出试验而改变界面裂缝模式。

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