化工进展2025，Vol.44Issue(4)：2141-2155,15.DOI:10.16085/j.issn.1000-6613.2024-0604
镍基合金在含侵蚀性离子的超临界水氧化中的腐蚀研究进展
Corrosion of nickel-based alloys in supercritical water oxidation containing erosive ions:A review
摘要
Abstract
Supercritical water oxidation(SCWO)is a highly efficient and environmentally friendly advanced oxidation technology,which is widely used to treat a variety of high-concentration pollutants,but acidic substances are generated during the treatment process,leading to corrosion of the equipment,which seriously limits the development of SCWO.Ni-based alloys with excellent high-temperature strength,oxidation and corrosion resistance are one of the candidate materials for the preparation of SCWO equipment,and it is of great significance for the development of the technology to investigate the corrosion phenomena and mechanisms in SCWO.This paper reviewed the corrosion of Ni-based alloys in supercritical water environment containing different aggressive ions(O2-、Cl-、S2-、PO3-4,etc.),and summarized the effect of different aggressive ions on corrosion.It was found that the corrosion of the alloy was more affected in the environment containing Cl or S.The corrosion mechanism of Ni-based alloys in supercritical water by different aggressive ions was discussed in detail,and two methods to slow down the corrosion by coating and surface modification were proposed.Finally,the future development direction of alloy corrosion was discussed,and it was proposed to use isotope labeling and pure metal corrosion to deeply analyze and elucidate the corrosion mechanism of alloys in the oxidizing environment of supercritical water.关键词
超临界水氧化/镍基合金/侵蚀性离子/腐蚀机理/高效环保Key words
supercritical water oxidation/Ni-based alloys/erosive ions/corrosion mechanism/highly efficient and environmental friendly分类
金属材料引用本文复制引用
陈积权,任鹏炜,朱日广,陈思思,唐兴颖,覃新宇,杨健乔..镍基合金在含侵蚀性离子的超临界水氧化中的腐蚀研究进展[J].化工进展,2025,44(4):2141-2155,15.基金项目
国家自然科学基金(22068003). （22068003）
