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Ce微合金化对超高强度钢耐腐蚀性能的研究进展

Research Progress on the Corrosion Resistance of Ultra- High-Strength Steels Modified by Ce Microalloying

Environment and Resource / 2026,8(1): 119-123 / 2026-03-06 14 6

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• Authors: 许迎春¹ 王圆永¹ 曲帅衡¹ 李艳飞² 蒋月月¹
• Information:

  1. 重庆科技大学冶金与动力工程学院，重庆；
  2. 辽宁省劳动经济学校，辽宁

• Keywords:
  Ce microalloying; Ultra-high-strength steel; Corrosion resistance; Inclusions; Passivation film
  Ce微合金化; 超高强度钢; 耐腐蚀性能; 夹杂物; 钝化膜
• Abstract: Ultra-high-strength steels are widely used in critical components for construction machinery, ships, mining equipment, and automobiles because of their high toughness and weight-saving potential. However, under practical service conditions, especially in chloride-containing environments, these steels are highly susceptible to pitting corrosion and often exhibit poor passive film stability, which severely limits their service life. Owing to its strong affinity for oxygen and sulfur, rare-earth Ce can effectively purify molten steel, modify inclusions, and promote the densification of passive films, thereby improving corrosion resistance. In this context, green microalloying with Ce has emerged as a promising strategy and has attracted increasing attention in recent years. Although the influence of Ce on the corrosion behavior of ultra-high-strength steels has been widely investigated, a systematic understanding of its governing mechanisms is still lacking. This review summarizes the role of Ce in steels for construction machinery, with emphasis on its effects on inclusions, passive films, and electrochemical behavior, and discusses the relationship between Ce content and corrosion resistance. Finally, the potential of Ce microalloying for improving the corrosion performance of ultra-high-strength steels and future research directions are outlined. 超高强度钢因其高韧性和轻量化优势，已经广泛应用于工程机械、船舶、矿山设备、汽车等领域的关键部件中。在实际使用过程中，环境比较复杂多变，在氯化物环境下，超高强度钢表现出较高的点蚀敏感性和较差的钝化膜稳定性，严重限制其服役寿命。稀土元素Ce凭借其亲氧-亲硫的特性，能有效净化钢液、改善夹杂物并促进钝化膜的致密化，从而提升耐腐蚀性能，当前，绿色微合金化技术成为一个突破口，近年来成为研究的热点之一。尽管Ce对超高强度钢耐蚀性的影响已被众多学者研究，但其作用规律尚未形成系统的总结。本文综述了Ce在工程机械用超高强度钢中的作用机制，重点讨论了Ce对夹杂物、钝化膜和电化学行为的影响规律，并阐明了“Ce含量与耐蚀性之间的关联机制”。此外，文章还展望了Ce微合金化技术在提高超高强度钢耐蚀性方面的潜力与未来研究方向。
• DOI: https://doi.org/10.35534/er.0801015 (registering DOI)
• Cite: 许迎春，王圆永，曲帅衡，等．Ce微合金化对超高强度钢耐腐蚀性能的研究进展［J］．环境与资源，2026，8（1）：119-123.