El-Shenawy Eman H, Farahat Ahmed I Z
Plastic Deformation Department, Metal Technology Institute, Central Metallurgical R&D Institute (CMRDI), Cairo, 11421, Egypt.
Sci Rep. 2023 Aug 1;13(1):12437. doi: 10.1038/s41598-023-39413-x.
Currently, magnesium alloys are widely utilized in diverse sectors due to their unique properties. However, the AZ61Mg alloy, a commonly used magnesium alloy, is known to have poor wear resistance, which limits its applications. To address this issue, researchers have investigated various surface treatment techniques, including the Abbott Firestone method, to improve the wear resistance of this alloy. This study employs response surface methodology (RSM) to examine the effects of pressure and velocity on wear behavior and Abbott Firestone zones of AZ61Mg alloy. Three pressure (0.01, 0.015, and 0.02 MPa) and velocity (0.57, 0.76, and 0.95 m/s) levels are used to conduct dry sliding wear tests at room temperature using a pin-on-disc method with an experimental design technique (EDT). Analysis of variance ANOVA is employed to identify the relationship between the input parameters (pressure and velocity) and the responses (wear rate, Surface Roughness Parameter Rz, and Abbott Firestone zones) of the AZ61Mg alloy. The optimized models for wear rate and Abbott Firestone zones yielded accurate estimations, which can enhance cost-effectiveness and efficiency. The findings indicate that pressure and velocity significantly affect the wear behavior of the AZ61Mg alloy.
目前，镁合金因其独特性能而被广泛应用于各个领域。然而，常用的镁合金AZ61Mg合金耐磨性较差，这限制了其应用。为解决这一问题，研究人员研究了包括艾伯特·费尔斯通方法在内的各种表面处理技术，以提高该合金的耐磨性。本研究采用响应面法（RSM）来研究压力和速度对AZ61Mg合金磨损行为及艾伯特·费尔斯通区域的影响。使用三种压力（0.01、0.015和0.02MPa）和速度（0.57、0.76和0.95m/s）水平，采用销盘法并结合实验设计技术（EDT）在室温下进行干滑动磨损试验。采用方差分析（ANOVA）来确定输入参数（压力和速度）与AZ61Mg合金的响应（磨损率、表面粗糙度参数Rz和艾伯特·费尔斯通区域）之间的关系。磨损率和艾伯特·费尔斯通区域的优化模型得出了准确的估计结果，这可以提高成本效益和效率。研究结果表明，压力和速度对AZ61Mg合金的磨损行为有显著影响。
