A5040955569- Hydrogen embrittlement and corrosion behaviors in metals
- Aluminum Alloy Microstructure Properties
- Fatigue and fracture mechanics
- Corrosion Behavior and Inhibition
- Non-Destructive Testing Techniques
- Aluminum Alloys Composites Properties
- Material Properties and Failure Mechanisms
- High Temperature Alloys and Creep
- Microstructure and mechanical properties
- Nuclear Materials and Properties
- Concrete Corrosion and Durability
- Material Properties and Applications
- Metallurgy and Material Forming
- Microstructure and Mechanical Properties of Steels
- Metal Forming Simulation Techniques
- Mechanical Failure Analysis and Simulation
- Metal and Thin Film Mechanics
- Titanium Alloys Microstructure and Properties
- Advanced Welding Techniques Analysis
- High-Velocity Impact and Material Behavior
- Metal Alloys Wear and Properties
- Powder Metallurgy Techniques and Materials
- Rocket and propulsion systems research
- Thermography and Photoacoustic Techniques
- Welding Techniques and Residual Stresses
University of Virginia
2009-2024
McCormick (United States)
2009-2012
Virginia Tech
1988
ExxonMobil (United States)
1981-1985
General Electric (United States)
1977
Lehigh University
1972-1974
Research on fatigue crack formation from a corroded 7075-T651 surface provides insight into the governing mechanical driving forces at microstructure-scale lengths that are intermediate between safe life and damage tolerant feature sizes. Crack marker-bands accurately quantify cycles (Ni) to form 10–20 μm emanating both an isolated pit perimeter EXCO surface. The Ni decreases with increasing-applied stress. Fatigue involves complex interaction of elastic stress concentration due...
Fracture mechanics experiments and occluded crack chemistry modeling validate the mechanism for intergranular stress corrosion cracking (IGSCC) of sensitized Al-Mg alloys: dissolution discontinuous grain boundary β (Al3Mg2) precipitates activates (α) solid solution to acidify tip hydrogen embrittlement. Slow-rising displacement with precracked specimens establish strong effect applied potential on IGSCC kinetics AA5083-H131 (S-L orientation, 22 mg/cm2) in neutral NaCl solution. Anodic...