Original Date: 11/03/1996
Revision Date: 01/18/2007
Information : Y-12 Ultrasonic Inspection Capabilities
The Oak Ridge Y-12 Plant ultrasonic capabilities provide for non-destructive measurement of the acoustic properties of production and development materials. These measurements aid in the selection of materials for design and inspection of material integrity. A customer may be interested in any of a number of material properties such as ratio of longitudinal to shear velocity. Or a customer may be interested in the integrity of welds, adhesive bonds, composites, or ceramics.
Various pieces of commercial equipment and specially adapted equipment are grouped together to form workstations or systems to measure the material properties. These systems include:
Materials Properties Workstation This station measures velocities with accuracies to 0.001%, and a reference standard is used to correct set-up errors. Dual waveforms are used in a cross correlation technique to provide precision velocity measurements from which attenuation is measured, and moduli and Poisson Ratio are determined.
MIDUS Ultrasonic Inspection Station This computer-controlled six-axis plate and rotary scanning system can follow simple contours and has automated data acquisition and analysis.
Multiscan Ultrasonic Inspection System This computer-controlled, five-axis, high resolution plate and rotary scanning system can follow complex contours.
Material properties and inspection can be determined on metals, composites, ceramics, plastics, elastomers, and liquids. The velocity and attenuation of a material is sensitive to many properties such as material modulus, density, texture, anisotropy, stress rate, composition, grain size, impurities, viscosity, and fatigue. These measurements can be made at temperatures ranging from -40°C to over 200°C.
For more information see the
Point of Contact for this survey.