Acoustic Emission Technique for Characterisation of Deformation, Fatigue, Fracture and Phase Transformation and for Leak Detection With High Sensitivity Our Experiences

摘要

Acoustic emission technique has been used for studying tensile deformation, fracture behaviour, detection and assessment of fatigure crack growth and #alpha#-martensite phase transformation in austenitic alloys. A methodology for amplification of weak acoustic emission signals has been established. Acoustic emission technique with advanced spectral analysis has enabled detection with high sensitivity of minute leaks in noisy environments.