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Full-Text Articles in Chemistry
Understanding Corrosion Protection And Failure Through Model Polymers In Thin Films, Joshua Smith Hanna
Understanding Corrosion Protection And Failure Through Model Polymers In Thin Films, Joshua Smith Hanna
Dissertations
When developing a model polymeric system to facilitate in the detection of molecular and microscopic events that preface macroscopic corrosive failure; a better understanding of how polymers can indicate corrosion was accomplished. Initially, the thought that molecular chain scission as a necessity for corrosion to occur had to be tested. Through the utilization of high molecular weight thermoplastic (HMWTP) model polymers, it was found that corrosion protection did not correlate to the quantity of weak bonds within an epoxy-amine polymer matrix. Therefore more sensitive methods of detecting corrosion had to be developed since changes within the polymer matrix did not …
Magnesium-Based Sacrificial Anode Cathodic Protection Coatings (Mg-Rich Primers) For Aluminum Alloys, Shashi S. Pathak, Sharathmukar K. Mendon, Michael D. Blanton, James W. Rawlins
Magnesium-Based Sacrificial Anode Cathodic Protection Coatings (Mg-Rich Primers) For Aluminum Alloys, Shashi S. Pathak, Sharathmukar K. Mendon, Michael D. Blanton, James W. Rawlins
Faculty Publications
Magnesium is electrochemically the most active metal employed in common structural alloys of iron and aluminum. Mg is widely used as a sacrificial anode to provide cathodic protection of underground and undersea metallic structures, ships, submarines, bridges, decks, aircraft and ground transportation systems. Following the same principle of utilizing Mg characteristics in engineering advantages in a decade-long successful R&D effort, Mg powder is now employed in organic coatings (termed as Mg-rich primers) as a sacrificial anode pigment to protect aerospace grade aluminum alloys against corrosion. Mg-rich primers have performed very well on aluminum alloys when compared against the current chromate …