Investigation of ultrasonic methods for residual stress measurement in metals: Annual report

Technical Report · Sun Feb 01 04:00:00 EST 1987

DOI:https://doi.org/10.2172/6866739· OSTI ID:6866739

Swanson, G. D.

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
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
42 ENGINEERING
420500* -- Engineering-- Materials Testing
ACOUSTIC TESTING
ALLOYS
ALUMINIUM ALLOYS
AXIAL SYMMETRY
BIREFRINGENCE
COPPER ALLOYS
CRYSTAL STRUCTURE
FREQUENCY SELECTION
GRAIN ORIENTATION
ISOTROPY
MATERIALS TESTING
MECHANICAL PROPERTIES
MICROSTRUCTURE
NONDESTRUCTIVE TESTING
ORIENTATION
REFRACTION
RESIDUAL STRESSES
SHEAR PROPERTIES
STRESSES
SYMMETRY
TESTING
TEXTURE
TITANIUM ALLOYS
ULTRASONIC TESTING
WAVE PROPAGATION