摘要
金属或合金表面三价铬基转化(TCC)膜毒性低,但稳定性较差且容易开裂。如何形成高品质的TCC膜,已成为提高材料耐蚀及稳定性的关键问题。本文通过调研国内外有关TCC膜研究现状,综述了TCC膜的生长过程、电化学特性、微观结构及物相等性能变化。结合氧化物热力学理论及膜层生长动力学模型,分析了TCC膜稳定性及发展机理,总结了目前TCC膜层生长研究中存在的问题,并对其未来发展趋势进行了展望。
The trivalent Cr-based conversion(TCC)film on metal and alloy has low toxicity,but unexpectedly poor stability and easy to crack.How to form a high-quality TCC film becomes the key issue for acquiring such films with comprehensive performance both in good corrosion resistance and stability.By investigating the relevant worldwide research of TCC film growth,the corresponding properties,like electrochemical performance,microstructure,phase constituents etc.of the film are reviewed.Taking the thermodynamic theory of oxides system and the kinetic model of film growth into consideration,the stability and growth mechanism of TCC film are analyzed,the existing problems and future developments for the growth of TCC film are proposed.
作者
王来滨
刘侠和
王梅
高俊杰
WANG Laibin;LIU Xiahe;WANG Mei;GAO Junjie(Department of Resource and Environment,Institute of Metallurgical Resources and Environmental Engineering,School of Metallurgy,Northeastern University,Shenyang 110819,China)
出处
《中国腐蚀与防护学报》
CAS
CSCD
北大核心
2021年第5期571-578,共8页
Journal of Chinese Society For Corrosion and Protection
基金
国家自然科学基金(51701038)
中央高校基本科研业务费专项(N162503002)。
关键词
三价铬
氧化膜
动力学
电化学
微观结构
trivalent chromium
oxide film
kinetics
electrochemistry
microstructure
