铸造技术2025，Vol.46Issue(11)：1037-1047,11.DOI:10.16410/j.issn1000-8365.2025.5094
铸造铝合金耐蚀性能研究进展与展望
Research Progress and Prospects on the Corrosion Resistance of Cast Aluminium Alloys
摘要
Abstract
As one of the most widely used types of aluminium alloys,cast aluminium alloys often serve in complex and variable environments.When used in marine or humid atmospheres,these alloys typically exhibit issues such as structural degradation and reduced service life due to corrosion.The adoption of appropriate methods to modify their microstructure,thereby influencing the composition and structure of the surface passive film,can enhance their corrosion resistance.This paper reviews recent research progress on the corrosion resistance of cast aluminium alloys,focusing on the roles of alloying elements such as Cu and Si,heat treatment processes,and passive films.Strongly cathodic elements such as Cu and Si can exacerbate galvanic corrosion,while adjusting the composition of secondary phases through microalloying(e.g.,adding trace rare earth/transition metals)or employing solution heat treatment to reduce electrochemically active interfaces can improve corrosion resistance.The failure mechanisms of surface passive films,such as Cl--induced pitting,can be analysed through various models.Finally,regarding the passive film of cast aluminium alloys,several questions and suggested future research directions are proposed.关键词
铸造铝合金/点蚀/钝化膜/电化学腐蚀Key words
cast aluminium alloy/pitting corrosion/passive film/electrochemical corrosion分类
矿业与冶金引用本文复制引用
王瑞,王东涛,吴子彬,长海博文..铸造铝合金耐蚀性能研究进展与展望[J].铸造技术,2025,46(11):1037-1047,11.基金项目
国家重点实验室开放基金(2022RALKFKT008) （2022RALKFKT008）
江苏省青年科技人才托举工程(JSTJ-2025-648) （JSTJ-2025-648）
