In this study, Al–6Si alloys with various Pb content (0, 10, 20, and 30 wt.%) were prepared by the spray deposition technique. Gaussian or bell-shaped spray deposits were obtained for different Al–6Si–xPb alloys at a pressure of 10 bar, at a nozzle to substrate distance of 450 mm, delivery tube with a diameter of 4 mm with a substrate inclination angle of 0°. Spray deposited Al–6Si–xPb alloys with variable Pb content were subjected to different rolling deformation. For the hardness measurements, samples were cut from the central and peripheral regions of the deposit containing different percentages of lead content. This paper examines the effect of deformation degree during different rolling reductions and the lead content of the spray deposited aluminum-silicon alloy on hardness behavior through the linear regression technique. A factorial design analysis was conducted to study the effect of different parameters, such as percentage of rolling deformation, variation of the lead composition, and preform distance from center to the periphery of the spray deposit. The influence of different rolling deformation on hardness values was more pronounced relative to that of the distance from the center to the peripheral region of the aluminum-silicon spray deposit with lead content. The hardness largely depends on the rolling deformation degree. Hardness values of the deposits were noted to increase with a higher deformation degree of the deposit, but it decreased as the Pb content increased.

在这项研究中，通过喷涂沉积技术制备了具有不同 Pb 含量（0、10、20 和 30 wt.%）的 Al-6Si 合金。在 10 bar 的压力下，喷嘴与基板的距离为 450 mm，直径为 4 mm 的输送管，基板倾角为 0° . 具有可变 Pb 含量的喷涂沉积 Al-6Si-xPb 合金经受不同的轧制变形。对于硬度测量，从含有不同铅含量百分比的沉积物的中心和外围区域切割样品。本文通过线性回归技术研究了不同轧制下的变形程度和喷镀铝硅合金的铅含量对硬度行为的影响。进行因子设计分析以研究不同参数的影响，例如轧制变形百分比、铅成分的变化以及从喷涂层中心到外围的预制棒距离。不同轧制变形对硬度值的影响相对于含铅铝硅喷镀层中心到周边区域的距离影响更为显着。硬度很大程度上取决于轧制变形程度。注意到沉积物的硬度值随着沉积物变形程度的增加而增加，但随着铅含量的增加而降低。和预成型件从中心到喷涂沉积物外围的距离。不同轧制变形对硬度值的影响相对于含铅铝硅喷镀层中心到周边区域的距离影响更为显着。硬度很大程度上取决于轧制变形程度。注意到沉积物的硬度值随着沉积物变形程度的增加而增加，但随着铅含量的增加而降低。和预成型件从中心到喷涂沉积物外围的距离。不同轧制变形对硬度值的影响相对于含铅铝硅喷镀层中心到周边区域的距离影响更为显着。硬度很大程度上取决于轧制变形程度。注意到沉积物的硬度值随着沉积物变形程度的增加而增加，但随着铅含量的增加而降低。