Air Force lab investigating microscopic crack formation for aircraft
Dr. Adam Pilchak, materials research engineer at the Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio, loads a piece of a fractured titanium disk into a scanning electron microscope. By looking at the microscopic features on the fracture surface, researchers are able to determine how the crack initiated and spreads through the component to cause the failure. (Air Force photo/Michele Eaton)

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Photo by: Michele Eaton |  VIRIN: 140708-F-HA571-105.JPG