The study investigated the tribology, corrosion, and tribocorrosion performance of aged Fe–30Mn–8Al–1.2 C–0.1Ti–(2Cr/Mo) steel, with a focus on oxide film and carbide. The precipitates changed from κ carbide to CrC/MoC with the addition of Cr/Mo. The inhomogeneous precipitation of CrC/MoC created zones of varying hardness, one being hard with strong strengthening and the other soft with weak strengthening. The inhomogeneous hardness distribution deteriorates the tribology performance of the steel. By minimizing galvanic coupling corrosion and improving the protectiveness of the oxide film, the addition of Cr/Mo can improve the corrosion and tribocorrosion resistance of lightweight steel.

中文翻译：

---

时效轻质钢的摩擦学、腐蚀和摩擦腐蚀性能：氧化膜和碳化物的影响

该研究调查了时效 Fe-30Mn-8Al-1.2 C-0.1Ti-(2Cr/Mo) 钢的摩擦学、腐蚀和摩擦腐蚀性能，重点关注氧化膜和碳化物。随着 Cr/Mo 的添加，析出物从 κ 碳化物转变为 CrC/MoC。 CrC/MoC 的不均匀析出形成了不同硬度的区域，一个区域硬度较高，强化程度较高，另一个区域硬度较软，强化程度较弱。不均匀的硬度分布会恶化钢的摩擦学性能。通过最大限度地减少电偶腐蚀并提高氧化膜的保护性，Cr/Mo的添加可以提高轻质钢的耐腐蚀性和耐摩擦腐蚀性能。