Ultrasonic NDT of titanium diffusion bonding with guided waves
- Pennsylvania State Univ., University Park, PA (United States). Dept. of Engineering Science and Mechanics
- Boeing Co., Long Beach, CA (United States)
An ultrasonic guided wave technique is developed for the NDT of diffusion bonded titanium-to-titanium structures. A three-layer model based on the normal beam experimental results has been proposed. Dispersion curves and wave structure are analyzed to direct the experimental study. Two features related to Lamb waves propagating in diffusion bonded titanium plates, the spectral peak to peak ratios and the wave mode frequency shift, are extracted from the guided wave experimental results for both 2 mm (0.08 in.) and 4 mm (0.16 in.) diffusion bond panels. It is found for some specific modes and frequencies that these two features are sensitive to the diffusion bonding states and, therefore, could be used to distinguish good bond panels from poor bond ones.
- OSTI ID:
- 292993
- Journal Information:
- Materials Evaluation, Vol. 56, Issue 4; Other Information: PBD: Apr 1998
- Country of Publication:
- United States
- Language:
- English
Similar Records
Characterization of nonlinear ultrasonic waves behavior while interacting with poor interlayer bonds in large-scale additive manufactured materials
In-Process Detection of Weld Defects Using Laser-Based Ultrasonic Lamb Waves