Facile synthesis of nano silica-based coating on API5L-x80 steel to achieve ultra non-wetting surface and its corrosion
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ORIGINAL ARTICLE
Facile synthesis of nano silica‑based coating on API5L‑x80 steel to achieve ultra non‑wetting surface and its corrosion resistance Songpon Tangsee1,2 · Najeeb Ur Rehman Lashari3 Received: 23 May 2020 / Accepted: 20 July 2020 © King Abdulaziz City for Science and Technology 2020
Abstract A facile and acceptable way for arrangement of non-wetting ultra-hydrophobic silica coatings is proposed in this work. The X80 steel samples with the dimension of 10 × 10 × 2 mm were used as the base metal. Commercially silica nanoparticles were modified using alkoxide organosilane as an active modifying agent. The ultra-hydrophobic silica coatings with a water contact angle of 142° were achieved (ultra-high degree of contact angle). The prepared silica coatings exhibit ultrahydrophobicity and excellent corrosion behaviors under 3.5 wt% NaCl immersion testing conditions, which surfaces with 2.0% and 2.5% of hydrophobic silica specimens show a low corrosion potential and current, significantly. The corrosion resistance of the samples was evaluated by the electrochemical impedance spectroscopy technique also the microstructure, and surface topography of the samples was evaluated with scanning electron microscopy and Fourier transform infrared, respectively. This coating method is expected such a convincing process technology against fabricating self-cleaning coatings for the encouraging industrial implementation. Keywords Ultra-hydrophobic · Silica coatings · EIS · Electrochemical corrosion · X80 steel
Introduction In a study of the corrosion of ferrous metals in soils by Cole Marney (2012), they found that the effect for corrosion formation over corrosion rate within an iron form is disorganized as well as rely on the characteristics regarding oxide. The detailed research of the reaction of condensation films against the oxides (as well as the interaction inside oxides) which grow over metals underclay was not ensured. Thus, it is necessary for analysis for understanding the characterization of corrosion product and mechanism of it (Gao et al. 2011; Jakupi et al. 2011; Lister et al. 1987; Wei et al. 2015). Multiple causes of internal corrosion in transport * Songpon Tangsee [email protected] 1
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230026, Anhui, China
2
School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China
3
School of Materials Science and Engineering, Xi’an Polytechnic University, Xi’an 710048, Shaanxi, China
pipelines that should be considered by corrosion investigator, including sour oil (Ilman 2014; Nešić 2007; Papavinasam et al. 2007, 2010; Sridhar et al. 2001), pure welds (Avendano-Castro et al. 2009; Chen et al. 2000; Vargas-Arista et al. 2014; Zhang and Cheng 2009), under-deposit corrosion (De Reus et al. 2005; Durnie et al. 2005; Tan et al. 2011; Vera et al. 2012), and microbial corrosion (Busalmen et al. 2002; Iverson 1987; Krishnamurt
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