Inference of crystallite orientation distribution function from the velocity of ultrasonic plate modes

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5105707

Lee, S S; Smith, J F; Thompson, R B

Expressions for the angular dependence of the velocities of the SH/sub 0/ and S/sub 0/ plate modes, propagating in the plane of a rolled plate at long wavelength, have been derived for textured cubic polycrystals. From the relationship between elastic constants and the coefficients of a CODF expansion, the values of W/sub 420/ and W/sub 440/ can readily be determined from measurement of differences in velocities without requirement for absolute velocity data. In principle, the absolute values of the velocities should determine W/sub 400/, but attempts at experimental implementation have not yet been successful. Even should it prove impossible to obtain a satisfactory measurement of the W/sub 400/ coefficient with the present technique, knowledge of the W/sub 420/ and W/sub 440/ values may be sufficient for establishing process control or material acceptance procedures for rolled metal plates.

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5105707
• Report Number(s): IS-M-592; CONF-860763-3; ON: DE87000576
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
42 ENGINEERING
420500* -- Engineering-- Materials Testing
ALUMINIUM
COPPER
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
CUBIC LATTICES
ELEMENTS
FABRICATION
MATERIALS WORKING
METALS
ORIENTATION
PLATES
POLYCRYSTALS
ROLLING
SOUND WAVES
TEXTURE
TRANSITION ELEMENTS
ULTRASONIC WAVES
ULTRASONOGRAPHY
VELOCITY
WAVE PROPAGATION