An ultrasonic goniometer for surface stress measurement
Abstract
An instrument has been constructed for the measurement of residual stress in steel. If necessary, large objects can be examined in situ. An account is given of the principles and construction. A special stressing frame provides for calibration. An application to residual stress in gear blanks has established a systematic variation of surface stress with nickel content and confirmed the overall effect of the surface hardening treatment.
- Publication:
-
Ultrasonics
- Pub Date:
- September 1978
- Bibcode:
- 1978Ultra..16..205A
- Keywords:
-
- Goniometers;
- Metal Surfaces;
- Residual Stress;
- Stress Measurement;
- Ultrasonic Tests;
- Calibrating;
- Design Analysis;
- Hardening (Materials);
- Steels;
- Surface Properties;
- Instrumentation and Photography