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Citations since 2016
4 Research Items
October 2007 - February 2016
University of Technology
Crude oil storage tanks usually undergo corrosion problems due to the activity of sulfur compounds, water content, and salts in crude oil. In this study, the corrosion resistance of carbon steel A285 grade C was improved by adding SiO2 nanoparticles (NPs) as a corrosion inhibitor. The SiO2 NPs were extracted from sand (from the city of Al-Ramadi in...
In the present work, corrosion inhibition of low carbon steel in a 1M H2SO4 solution by pectin nanoparticles extract was studied by potentiostatic and weight loss methods. Increasing the acid concentration leads to an increase in the corrosion rate of the electrode. The variable conditions of the pectin nanoparticles used in this investigation are...
Zinc alloys are used in very wide industrial applications due to their excellent physical and mechanical properties. To improve the corrosion resistance, anodizing process is used. Anodizing of Zinc Alloy ZA12 is investigated in 1 M H2SO4 solution for 10, 20 30,40 and 50 mins at a constant voltage of 5V. Atomic force microscope (AFM) used to study...
In the present work, corrosion inhibition for low carbon steel in a 1M H2SO4 solution was prepared successfully from Iraqi rice husk (IRH). The weight loss and potentiostatic methods were used to study the corrosion rate. Increasing the acid concentration led to an increase in the corrosion rate of the electrode. The variable conditions in this inv...
Anodizing of AZ 31 Mg alloy was investigate in 3M KOH solution for 10, 20 and 30min. at constant voltage of 5V. Atomic force microscope (AFM) used to investigate the roughness of anodic film formed on the surface while the scanning electron microscope (SEM) was used to determine the morphology of the anodic film, it was found that the roughness of...
Pulse ND-YAG laser was used to study the electrochemical behavior of low carbon steel in 1, 2, and 3.5 % NaCl solution before and after laser surface treatment (LST). Potentiostatic technique and Tafel extrapolation were performed in order to find the corrosion rates and the corrosion potential. The results show that the corrosion rates of LST were...
Corrosion is the destructive attack of a metal by chemical or electrochemical reaction with its environment. Stainless steels have surface passive layer which exhibits a truly remarkable property: when damaged (e.g. abraded), it self-repairs as chromium in the steel reacts rapidly with oxygen and moisture in the environment to reform the oxide laye...
Aluminum alloy (3003) has been anodized using sulfuric acid solution. To study the characteristic of the anodic film of aluminum alloy (3003); four variables are examined in term of anodic film thickness, these are current density ranging between 1.5- 3.5 A/dm2, electrolyte concentration ranging between 10- 20 Vol.%, electrolyte temperature between...
Friction stir welding (FSW) is a promising solid state joining process and is widely being considered for Al-alloys especially for joining aerospace and aircraft aluminum alloys. In this work, the microstructure and corrosion behavior of the FSW 2024-T3 Al-alloy are studied. The friction stir welding was carried out by using CNC milling machine at...
In the present work, an electrochemical anodizations of pure Zn sheet result in the ZnO porous film structure in alkaline solution (15% ammonium florid) by using constant voltage technique at a range of (2-10) volt, for a period time of 10 minutes at room temperature was studied. Atomic force microscope (AFM) used to investigate the topography and roughness of anodic film formed on the surface, it was found that the roughness of the anodic film is mainly depended on the anodizing voltage and its increase from 0.2 (as polished) to (2.9) nm after anodizing. Coating thickness also increases with an increase in voltage from 0 to 285 µm after anodizing. The corrosion behaviors of anodized and non-anodized of zinc specimens in sea water are obtained. The corrosion current density and corrosion rate are decreased with an increase in supplying voltage which increases anodic film thickness.