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Title: Measurement of physical characteristics of materials by ultrasonic methods

Abstract

A method is described for determining and evaluating physical characteristics of a material. In particular, the present invention provides for determining and evaluating the anisotropic characteristics of materials, especially those resulting from such manufacturing processes as rolling, forming, extruding, drawing, forging, etc. In operation, a complex ultrasonic wave is created in the material of interest by any method. The wave form may be any combination of wave types and modes and is not limited to fundamental plate modes. The velocity of propagation of selected components which make up the complex ultrasonic wave are measured and evaluated to determine the physical characteristics of the material including, texture, strain/stress, grain size, crystal structure, etc. 14 figs.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
672707
Patent Number(s):
5804727
Application Number:
PAN: 8-522,682
Assignee:
Sandia Corp., Livermore, CA (United States)
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 8 Sep 1998
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; ULTRASONIC TESTING; TEXTURE; MATERIALS; STRESSES; GRAIN SIZE; CRYSTAL STRUCTURE; STRAINS

Citation Formats

Lu, W Y, and Min, S. Measurement of physical characteristics of materials by ultrasonic methods. United States: N. p., 1998. Web.
Lu, W Y, & Min, S. Measurement of physical characteristics of materials by ultrasonic methods. United States.
Lu, W Y, and Min, S. Tue . "Measurement of physical characteristics of materials by ultrasonic methods". United States.
@article{osti_672707,
title = {Measurement of physical characteristics of materials by ultrasonic methods},
author = {Lu, W Y and Min, S},
abstractNote = {A method is described for determining and evaluating physical characteristics of a material. In particular, the present invention provides for determining and evaluating the anisotropic characteristics of materials, especially those resulting from such manufacturing processes as rolling, forming, extruding, drawing, forging, etc. In operation, a complex ultrasonic wave is created in the material of interest by any method. The wave form may be any combination of wave types and modes and is not limited to fundamental plate modes. The velocity of propagation of selected components which make up the complex ultrasonic wave are measured and evaluated to determine the physical characteristics of the material including, texture, strain/stress, grain size, crystal structure, etc. 14 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {9}
}