Abstract
In this article, the effect of adding different amounts of aluminum to a low-alloy 35ХГСЛ steel was investigated to determine its influence on the alloy’s fluidity. The experiments were conducted using an induction melting process. During the tests, aluminum was added to the molten metal in amounts of 0.2%, 0.4%, 0.6%, and 0.8%, and samples were cast using a U-shaped sand-clay mold. The results showed that the addition of aluminum significantly increases the fluidity of the metal; however, when its amount exceeds the optimal level, the fluidity decreases. The best result was observed with the addition of 0.6% aluminum. This amount reduces the surface tension of the molten metal, improves its flowability, and enhances the casting quality. Moreover, it was found to be the most economically feasible amount.