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The Effect of Process Parameters on the Mechanical Properties of A356 Al-Alloy/ZrO2 Nano-composite

机译:工艺参数对A356铝合金/ ZrO2纳米复合材料力学性能的影响

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摘要

In this study the effect of zirconia (ZrO2) nano-particles (40 nm) in reinforcing A356 aluminum alloys as a base metal matrix were investigated. Zirconia nano-powders were stirred in the A356 matrix with different fraction ratios ranging from (0, 1, 2, 3, 5%) by weight at variable stirring speeds ranging from (270, 800, 1500, 2150 r.p.m) at a mushy zone (600 degrees C) and liquid state (700 degrees C) using a constant stirring time for one minute. The microstructure revealed the change of grains from dendritic to spherical shape with increasing stirring speed. The Scanning Electron Microscopy of the fractured surface revealed the presence of nano-particles at the interdendritic spacing of the fracture surface and was confirmed with EDX analysis of these particles.
机译:在这项研究中,研究了氧化锆(ZrO2)纳米粒子(40 nm)在增强A356铝合金作为贱金属基体中的作用。氧化锆纳米粉体在糊状区中以(270、800、1500、2150 rpm)范围内的可变搅拌速度在(0、1、2、3、5%)重量比范围内的不同比例下在A356基质中搅拌(600摄氏度)和液态(700摄氏度)使用恒定的搅拌时间持续一分钟。微观结构表明,随着搅拌速度的增加,晶粒从树枝状转变为球形。断裂表面的扫描电子显微镜显示出在断裂表面的树突间间距处存在纳米颗粒,并且通过对这些颗粒的EDX分析来证实。

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