In this study, optimization of the corrosion rate (CR) of Mg-composites has been evaluated by varying the concentration, reinforcement percentage, and immersion time. As prime material, pure Mg is preferred for this research and chromium (Cr) consider as a reinforcing material with different percentages. CR (miles/yr) has been optimized by varying parameters such as reinforcement percentage as 3%, 5% and 7% including NaCl immersion medium (%) as 2.4%, 3.5% and 4.7% with immersion time (h) such as 48h, 72h and 96h. By using, DOF, minimal CR has been measured with the assistance of Minitab Software having ANOVA and Taguchi approaches. Optimized results reveal that the percentage of corrosion solution is influenced upto 66.10%, reinforcement percentage contributed to 27.56% and immersion time influenced upto 2.81%. An optimized combination of CR is 7wt. % Cr with 2.4% NaCl for 96h. However, microscopy results illustrate shallow crack boundaries in Mg/Cr composites due to its chemical reaction in alkaline solution.

中文翻译：

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镁铬复合材料腐蚀速率的经验优化

在这项研究中，通过改变浓度、增强百分比和浸泡时间来评估镁复合材料的腐蚀速率 (CR) 的优化。作为主要材料，本研究首选纯镁，铬 (Cr) 考虑作为不同百分比的增强材料。CR（英里/年）已通过改变参数进行优化，例如增强百分比为 3%、5% 和 7%，包括 NaCl 浸入介质 (%) 为 2.4%、3.5% 和 4.7%，浸入时间 (h) 为 48h 、72 小时和 96 小时。通过使用 DOF，在具有方差分析和田口方法的 Minitab 软件的帮助下测量了最小 CR。优化结果表明，腐蚀溶液的百分比影响高达66.10%，加固百分比贡献了27.56%，浸泡时间影响了2.81%。CR 的优化组合为 7wt。% Cr 与 2.4% NaCl 保持 96 小时。然而，显微镜结果表明，由于 Mg/Cr 复合材料在碱性溶液中的化学反应，其裂纹边界较浅。