CORROSION-BEHAVIOR ANALYSIS OF A Fe-Al LAYER IN SEAWATER CHARACTERIZED BY STATIC CHEMICAL ETCHING | Zendy

Ningning Li | Zendy; Guang Chen | Zendy; Guoyuan Sun | Zendy; Xinhua Qi | Zendy

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CORROSION-BEHAVIOR ANALYSIS OF A Fe-Al LAYER IN SEAWATER CHARACTERIZED BY STATIC CHEMICAL ETCHING

Author(s) -

Ningning Li,

Guang Chen,

Guoyuan Sun,

Xinhua Qi

Publication year - 2021

Publication title -

materiali in tehnologije

Language(s) - English

Resource type - Journals

eISSN - 1580-3414

pISSN - 1580-2949

DOI - 10.17222/mit.2020.236

Subject(s) - corrosion , materials science , seawater , layer (electronics) , metallurgy , immersion (mathematics) , etching (microfabrication) , isotropic etching , artificial seawater , composite material , oceanography , mathematics , pure mathematics , geology

The static corrosion behavior of a Fe-Al layer was investigated with an immersion test in seawater, using XRD and SEM with EDS, testing the corrosion rate. The results showed that phases -Al2O3, Fe2O3 and MgO were the main corrosion products on the Fe-Al layer surface, while corrosion pits and holes were also observed. It was found that the Fe-Al layer fabricated at 750 °C exhibits a better corrosion resistance, having smaller corrosion pits and holes and also a low corrosion rate. This was related to a good formation ability of the alumina passive film.

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