ABSTRACT In this paper, a novel AM series Mg alloy developed through a stir casting process has been discussed. The current research utilizes an improved stir casting setup with a systemized inert facility. The effects of the processing parameters viz. stirring speed and holding temperature on microstructure and mechanical properties of the novel AM alloy (Mg-7 wt%Al-0.9 wt%Mn) have been investigated during the study. In addition, the study also attempts to highlight the adverse effect of higher values of processing parameter on porosity. The five output variables, such as Ultimate tensile strength (UTS), Yield strength (YS), Elastic modulus (E), Hardness, and Density (d), were measured for different combinations of processing parameters. The results showed an evident rise in the mechanical properties with the variation of stirring speed and holding temperature; the optimum values were attained at 250 rpm and 700°C. A significant enhancement in the Elastic modulus (24.3%) and hardness (16.21%) was witnessed vis-à-vis the existing AM series alloy. The improved properties of the novel material will make it a prospective candidate for industrial applications.

中文翻译：

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研究加工参数对开发的新型AM(Al-Mn)系列合金影响的实验研究

摘要 本文讨论了一种通过搅拌铸造工艺开发的新型 AM 系列镁合金。目前的研究利用改进的搅拌浇铸装置和系统化的惰性设施。加工参数的影响即。在研究过程中，研究了搅拌速度和保温温度对新型 AM 合金（Mg-7 wt%Al-0.9 wt%Mn）的微观结构和机械性能的影响。此外，该研究还试图强调较高的加工参数值对孔隙率的不利影响。五个输出变量，例如极限拉伸强度 (UTS)、屈服强度 (YS)、弹性模量 (E)、硬度和密度 (d)，是针对不同的加工参数组合进行测量的。结果表明，随着搅拌速度和保温温度的变化，力学性能有明显的提高；最佳值是在 250 rpm 和 700°C 下获得的。与现有的 AM 系列合金相比，弹性模量 (24.3%) 和硬度 (16.21%) 显着提高。新型材料的改进性能将使其成为工业应用的潜在候选者。