The effect of micro-alloying Sn (0.08 wt.%) on dry sliding abrasive wear behaviour of cast Al-Mg-Si alloy was investigated. Additionally, microstructure, hardness, and their impact on wear resistance were also investigated. It was observed that Sn contributes to the hardness and accelerates the age-hardening response of the Al-Mg-Si alloy. Sn addition also favours the formation of script-like Al(Fe, Mn)Si phase and increases the amount of Mg₂Si precipitate. SEM investigation of worn surfaces reveals a similar abrasive wear mechanism in both the alloys which were micro-cracking, ploughing, and delamination. The study also reveals that improving the hardness by micro-alloying 0.08 wt.% Sn can prevent mass loss and marginally improves the wear resistance of the Al-Mg-Si.

研究了微合金化锡 (0.08 wt.%) 对铸造铝镁硅合金干滑动磨粒磨损行为的影响。此外，还研究了微观结构、硬度及其对耐磨性的影响。观察到 Sn 有助于提高 Al-Mg-Si 合金的硬度并加速时效硬化反应。添加Sn也有利于形成脚本状Al(Fe, Mn)Si相并增加Mg ₂ Si沉淀物的量。磨损表面的 SEM 研究揭示了两种合金的类似磨料磨损机制，即微裂纹、犁沟和分层。该研究还表明，通过微合金化 0.08 wt.% Sn 来提高硬度可以防止质量损失并略微提高 Al-Mg-Si 的耐磨性。