Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Academic -- UNF -- Engineering; Porosity; Casting; Cavitation; Liquid Fracture; Vacancy Cluster; Bifilms (1)
- Academic -- UNF -- Master of Science in Mechanical Engineering; Dissertations (1)
- Bonding, Grain Refinement, Microhardness (1)
- Cold Spray (1)
- Dissertations, Academic -- UNF -- Engineering (1)
-
- Dissertations, Academic -- UNF -- Master of Science in Mechanical Engineering (1)
- Thesis (1)
- Thesis; University of North Florida; UNF; Dissertations (1)
- Thesis; University of North Florida; UNF; Dissertations; Academic -- UNF -- Master of Science in Mechanical Engineering; Dissertations; Academic -- UNF -- Engineering; Corrosion; Fatigue; Aluminum Alloy 6061-T6 (1)
- UNF (1)
- University of North Florida (1)
Articles 1 - 3 of 3
Full-Text Articles in Mechanical Engineering
Investigation Of Microstructurally Dependent Mechanical Properties Of Cold Sprayed Copper Using Correlative Microscopy, Quintin Otto
Investigation Of Microstructurally Dependent Mechanical Properties Of Cold Sprayed Copper Using Correlative Microscopy, Quintin Otto
UNF Graduate Theses and Dissertations
This project employs multi-instrument materials characterization to analyze material made with the “Cold Spray” additive manufacturing process. Cold spray is an emerging additive manufacturing technique with unique benefits resulting from its low temperature adhesion process induced by plastic deformation. Metallic powder collides at high speeds creating three dimensional materials and coatings without the need for melting. Copper cold sprayed specimens were analyzed using a series of imaging techniques to characterize the microstructure at varying levels of detail and magnification. Scanning electron microscopy and electron back scattered diffraction were paired with microhardness testing to generate a correlative comparison between microstructure and …
Pore Formation In Aluminum Castings: Theoretical Calculations And The Extrinsic Effect Of Entrained Surface Oxide Films, Pedram Yousefian
Pore Formation In Aluminum Castings: Theoretical Calculations And The Extrinsic Effect Of Entrained Surface Oxide Films, Pedram Yousefian
UNF Graduate Theses and Dissertations
Aluminum alloy castings are being integrated increasingly into automotive and aerospace assemblies due to their extraordinary properties, especially high strength-to-density ratio. To produce high quality castings, it is necessary to understand the mechanisms of the formation of defects, specifically pores and inclusion, in aluminum. There have been numerous studies on pore formation during solidification which lead to hot tearing and/or reduction in mechanical properties. However, a comprehensive study that correlates pore formation theory with in situ observations and modeling assumptions from the literature as well as experimental observations in not available. The present study is motivated to fill this gap. …
The Effect Of Surface Corrosion Damage On The Fatigue Life Of Extruded Aluminum Alloy 6061-T6, Matthew Weber
The Effect Of Surface Corrosion Damage On The Fatigue Life Of Extruded Aluminum Alloy 6061-T6, Matthew Weber
UNF Graduate Theses and Dissertations
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 …