In this paper, the effects of squeeze casting parameters on the wear behavior of A390 aluminum alloy were investigated. For this purpose, the experiment was designed according to L9 Taguchi array that the squeeze pressure (60, 90 and 120 MPa), the superheats of liquid metal (50, 100 and 150 °C) and the die preheating temperature (200, 250 and 300 °C) were selected as the independent variables at three levels. On the contrary, the microstructure characteristics, the weight loss of specimen after wear test and friction coefficient were examined as dependent variables. The microstructural characterizations were also performed using optical microscopy equipped with image analyzer and SEM equipped with EDS. The squeeze casting was performed with a 20-ton hydraulic press in a cylindrical shape. According to the results, the increase in squeezing pressure from 60 to 120 MPa within the tested range leads to a decrease in primary silicon area by 48% and a decrease in silicon eutectic by 44.4%; however, applied pressure did not have any significant effects on morphology of phases. The wear tests were carried out using a computer-controlled pin on disk wear test machine in ambient temperature.

本文研究了挤压铸造参数对A390铝合金耐磨性能的影响。为此，根据L9 Taguchi阵列设计了实验，其挤压压力（60、90和120 MPa），液态金属的过热度（50、100和150°C）以及模具预热温度（200、250和250°C）选择300°C作为三个级别的自变量。相反，将微观结构特性，磨损试验后试样的重量损失和摩擦系数作为因变量。显微结构表征也使用配备有图像分析仪的光学显微镜和配备EDS的SEM进行。挤压铸造用20吨的液压机以圆筒形进行。根据结果​​，在测试范围内，挤压压力从60 MPa增加到120 MPa，导致一次硅面积减少了48％，共晶硅减少了44.4％；但是，施加的压力对相的形态没有显着影响。磨损测试是在环境温度下使用计算机控制的针在磁盘磨损测试机上进行的。