Abstract
The corrosion behavior of two aluminum alloys Al 6061 T6 and Al 2024 T3 was investigated in a low carbon fuel consisting of concentrated aqueous solutions of ammonium nitrate and urea (ANU). Weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy techniques were applied to study the alloys corrosion behavior. Results obtained showed that a corrosion resistance passive film was formed on the surface of both aluminum alloys in solutions of pure ANU and ANU containing up to 1% NaCl. No flawed regions were found on the surface of either alloy after immersion in both solutions for 1500 h. However, immersion of the metals into pure 1% NaCl solution resulted in corroded regions immediately after immersion. The results received from weight loss, polarization, and impedance measurements are in excellent agreement. The high corrosion resistance of both Al alloys in the ANU solution containing up to 1 wt% NaCl support a safe usage of these materials for construction of storage containers and piping of these solutions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
