Microbiologically-influenced corrosion of the electroless-deposited NiP-TiNi – Coating

Arabian Journal of Chemistry

卷:14

George Jarjoura¹  Fatma Hamdy¹  Mohammed A. Sharaf²  Aboubakr M. Abdullah²  Noora Al-Qahtani²  Eman M. Fayyad²  Khaled A. Mahmoud²  Mohammad K. Hassan³  Zoheir Farhat⁴  P. Abdul Rasheed⁵  Adel M. Mohamed⁵ 

[1] Corresponding authors.;

[2] Center for Advanced Materials, Qatar University, PO. Box 2713, Doha, Qatar;

[3] Department of Maritime Transportation Management Engineering, İstanbul University-Cerrahpaşa, Avcilar, Istanbul 34320, Turkey;

[4] Department of Metallurgical and Materials Engineering, Faculty of Petroleum and Mining Engineering, Suez University, Box 43721, Suez, Egypt;

[5] Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, PO. Box 34110, Doha, Qatar;

关键词: NiP;    TiNi nanoparticle;    Coating;    Microbial Corrosion;    Electrochemical Impedance Spectroscopy;   

DOI  :  

来源: DOAJ

【 摘 要 】

In this study, we reveal the microbiologically influenced corrosion (MIC) behavior of the new electroless NiP-TiNi nanocomposite coating in simulated seawater using the electrochemical impedance spectroscopy (EIS) technique after different periods of incubation time (7, 10, 14, 21, 28 days) in a sulfate-reducing bacteria (SRB) medium. The biofilm formation and the corrosion products were characterized using the scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS). The EIS results revealed the carbon steel (CS)/NiP-TiNi and NiP-TiNi/SRB biofilm interfaces' characteristics after different incubation times in the SRB media. EIS measurements revealed that the NiP-TiNi nanocomposite coating's MIC resistances are superior relative to API X80 carbon steel and a TiNi-free NiP coating, with ∼93% of corrosion inhibition efficiency after 28 days of incubation.

【 授权许可】

Unknown