The Positive impact of biomineralization for marine corrosion protection of AA5083 alloy

被引：8
|
作者：
Marques, M. J. F. [1 ,2 ]
Jaume, J. [1 ]
Mercier, D. [3 ]
Seyeux, A. [3 ]
Zanna, S. [3 ]
Basseguy, R. [1 ]
Marcus, P. [3 ]
机构：
[1] Univ Toulouse, Lab Genie Chim, CNRS, INPT,UPS, Toulouse, France
[2] LNEG Lab Nacl Energia & Geol, Lab Mat & Revestimentos, Lisbon, Portugal
[3] PSL Res Univ, Inst Rech Chim Paris, Res Grp Phys Chem Surfaces IRCP, Chim ParisTech,CNRS, Paris, France
来源：
CORROSION SCIENCE | 2024年 / 233卷
关键词：
Aluminium alloy; Marine corrosion inhibition; Biomineralization; Extracellular Polymeric Substances (EPS); MgO andMg(OH)2; INHIBITION; POLYSACCHARIDES; INDUCTION; SEAWEED; STEEL;
D O I：
10.1016/j.corsci.2024.112053
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper investigates, using surface characterisation techniques (SEM, XPS and ToF-SIMS), the impact of marine biological activity on AA5083 corrosion behaviour during seawater immersion. Different solar exposure (light vs. dark) results in distinct marine fouling development, influencing surface modifications. On the dark side, an Al/Mg oxide/hydroxide layer forms, allowing Cl - penetration. Pitting attack is observed after immersion. For the light side, a dual layer structure forms, with a hydrated Mg rich outer layer, showing barrier effect to Cl - penetration. No localized corrosion occurs. A comparison with abiotic conditions demonstrates the corrosioninhibiting effect of marine biological activity on AA5083.
引用
收藏
页数：17
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