Ultrasonic flaw detection and characterisation - An Australian view
Abstract
In Australia, most ultrasonic weld testing is carried out using manual pulse-echo A-scan methods. Much of this testing is effected at distances of three near-zones and less; and a variety of combinations of probe and instrument types is used. It appears that a variability of up to 15 dB in the assessment of relative reflectivities is not unrepresentative of the general case. As far as flaw size estimation is concerned, it is considered that the variability of test results should be less of a problem when using surface plotting methods such as the 20 dB technique.
- Publication:
-
9th World Conference on Non-destructive Testing
- Pub Date:
- 1980
- Bibcode:
- 1980ndt..confQ....H
- Keywords:
-
- Inspection;
- Nondestructive Tests;
- Test Equipment;
- Ultrasonic Flaw Detection;
- Ultrasonic Tests;
- Weld Tests;
- Australia;
- Echo Sounding;
- Equipment Specifications;
- Quality Control;
- Spectral Reflectance;
- Standards;
- Instrumentation and Photography