Angle beam ultrasonic techniques are utilized for which of the following?

Angle beam ultrasonic techniques are specifically designed to identify flaws in welds and to perform flaw sizing. This method involves the use of an angle beam transducer, which emits ultrasonic waves at a specific angle relative to the surface of the material being tested.

When the ultrasonic waves travel through the weld and encounter a discontinuity, such as a crack or a void, they are reflected back to the transducer. The time taken for these echoes to return can be analyzed to determine the location, size, and nature of the flaw. Additionally, the use of angle beam testing is particularly effective for examining welds in thicker materials where straight beam techniques may not be as effective.

This application is critical in ensuring the integrity and safety of welded structures, as it helps in detecting internal flaws that could compromise the weld's performance under service conditions. The other options presented do not align with the primary purpose of angle beam ultrasonic techniques; thus, their relevance in this context is limited.