College of Engineering and Polymer Science

Date of Last Revision

2023-05-08 16:37:40


Chemical Engineering

Honors Course


Number of Credits


Degree Name

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Date of Expected Graduation

Spring 2023


The motivation and objectives of this project is to examine the mechanisms of intergranular corrosion (IGC) and pitting corrosion of sensitized AA5083. In this regard, different characterization techniques were used, including optical analysis of microstructure, cyclic potentiodynamic polarization with Tafel fitting, electrochemical impedance spectroscopy with electrical equivalent circuit (EEC) fitting, and potentiostatic current transient monitoring. The transition from IGC to pitting corrosion occurs when the grain boundaries become saturated with the β-phase (Mg2Al3). It was found that AA5083 becomes more vulnerable to pitting corrosion as the degree of sensitization increases.

Research Sponsor

David Bastidas

First Reader

Jacob Ress

Second Reader

Roya Gitiafroz

Honors Faculty Advisor

Zhenmeng Peng

Proprietary and/or Confidential Information


Cover page.pdf (361 kB)
Copy of the Cover Sheet

WHC-HRP+Final+Signature+Page_EglestonC_DMB_JR_RG.pdf (414 kB)



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