Investigation of ultrasonic methods for residual stress measurement in metals: Annual report
Three ultrasonic methods and one combination of methods were investigated for nondestructively measuring residual stress in metals. Shear wave birefringence measurements on samples cut from drawn metal rods showed no texture for axial wave propagation, but significant texture for wave propagation normal to the axis. Surface wave velocity measurements made over a wide range of wave propagation angles in a severely textured rolled metal bar showed no evidence of any excluded propagation directions. A shear horizontal wave generator made with a contact shear transducer coupled to a Plexiglas wedge was used with a two-knife edge receiver to create a compact transducer assembly. A combination of results from shear wave birefringence and surface wave velocity measurements, when described using crystallite orientation distribution functions, has the potential for directly separating the effects of texture and stress.
- Research Organization:
- Allied Corp., Kansas City, MO (USA). Bendix Kansas City Div.
- DOE Contract Number:
- AC04-76DP00613
- OSTI ID:
- 6866739
- Report Number(s):
- BDX-613-3685; ON: DE87006578
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
RESIDUAL STRESSES
ULTRASONIC TESTING
COPPER ALLOYS
TITANIUM ALLOYS
AXIAL SYMMETRY
BIREFRINGENCE
CRYSTAL STRUCTURE
FREQUENCY SELECTION
GRAIN ORIENTATION
ISOTROPY
SHEAR PROPERTIES
TEXTURE
WAVE PROPAGATION
ACOUSTIC TESTING
ALLOYS
MATERIALS TESTING
MECHANICAL PROPERTIES
MICROSTRUCTURE
NONDESTRUCTIVE TESTING
ORIENTATION
REFRACTION
STRESSES
SYMMETRY
TESTING
420500* - Engineering- Materials Testing
360103 - Metals & Alloys- Mechanical Properties