skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

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.

Inventors:
 [1];  [2]
  1. (Pleasanton, CA)
  2. (Livermore, CA)
Issue Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
871824
Patent Number(s):
5804727
Assignee:
Sandia Corporation (Livermore, CA) SNL
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
measurement; physical; characteristics; materials; ultrasonic; methods; method; described; determining; evaluating; material; particular; provides; anisotropic; especially; resulting; manufacturing; processes; rolling; forming; extruding; drawing; forging; etc; operation; complex; wave; created; form; combination; types; modes; limited; fundamental; plate; velocity; propagation; selected; components; measured; evaluated; determine; including; texture; strain; stress; grain; size; crystal; structure; ultrasonic wave; plate modes; wave form; manufacturing process; physical characteristics; grain size; material including; crystal structure; selected components; plate mode; ultrasonic method; selected component; physical characteristic; manufacturing processes; /73/

Citation Formats

Lu, Wei-yang, and Min, Shermann. Measurement of physical characteristics of materials by ultrasonic methods. United States: N. p., 1998. Web.
Lu, Wei-yang, & Min, Shermann. Measurement of physical characteristics of materials by ultrasonic methods. United States.
Lu, Wei-yang, and Min, Shermann. Thu . "Measurement of physical characteristics of materials by ultrasonic methods". United States. https://www.osti.gov/servlets/purl/871824.
@article{osti_871824,
title = {Measurement of physical characteristics of materials by ultrasonic methods},
author = {Lu, Wei-yang and Min, Shermann},
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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

Save / Share: