Year
2014
Season
Summer
Paper Type
Master's Thesis
College
College of Computing, Engineering & Construction
Degree Name
Master of Science in Mechanical Engineering (MSME)
Department
Engineering
NACO controlled Corporate Body
University of North Florida. School of Engineering
First Advisor
Dr. Paul Eason
Second Advisor
Dr. Murat Tiryakioğlu
Rights Statement
http://rightsstatements.org/vocab/InC/1.0/
Third Advisor
Dr. Juan Aceros
Department Chair
Dr. Murat Tiryakioğlu
College Dean
Dr. Mark A. Tumeo
Abstract
Aluminum alloy 6061-T6 is a common engineering material used in aerospace, automotive, structural applications. Despite its wide use, little has been published about the effects of damage from surface corrosion on its fatigue life. An investigation was performed where 6061-T6 extrusions were exposed to a 3.5% NaCl solution at pH 2 for 2 days and 24 days. The length of time and pH were chosen in order to create distinct surface flaws. The effect of these flaws on the fatigue life was then investigated and analyzed using scanning electron microscopy (SEM) and Weibull statistics. It was determined that samples corroded for both 2-days and 24-days exhibit fatigue lives that can be described using a 3-parameter Weibull distribution. The result of which was the determination of a threshold value for fatigue as well a general understanding of flaw geometry.
Suggested Citation
Weber, Matthew, "The Effect of Surface Corrosion Damage on the Fatigue Life of Extruded Aluminum Alloy 6061-T6" (2014). UNF Graduate Theses and Dissertations. 524.
https://digitalcommons.unf.edu/etd/524