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Title: Method for determining the hardness of strain hardening articles of tungsten-nickel-iron alloy

Abstract

The present invention is directed to a rapid nondestructive method for determining the extent of strain hardening in an article of tungsten-nickel-iron alloy. The method comprises saturating the article with a magnetic field from a permanent magnet, measuring the magnetic flux emanating from the article, comparing the measurements of the magnetic flux emanating from the article with measured magnetic fluxes from similarly shaped standards of the alloy with known amounts of strain hardening to determine the hardness.

Inventors:
 [1]
  1. (Knoxville, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
865244
Patent Number(s):
4481470
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; determining; hardness; strain; hardening; articles; tungsten-nickel-iron; alloy; directed; rapid; nondestructive; extent; article; comprises; saturating; magnetic; field; permanent; magnet; measuring; flux; emanating; comparing; measurements; measured; fluxes; similarly; shaped; standards; amounts; determine; nondestructive method; tungsten-nickel-iron alloy; method comprises; magnetic flux; permanent magnet; magnetic field; strain hardening; method comprise; similarly shaped; iron alloy; /324/

Citation Formats

Wallace, Steven A. Method for determining the hardness of strain hardening articles of tungsten-nickel-iron alloy. United States: N. p., 1984. Web.
Wallace, Steven A. Method for determining the hardness of strain hardening articles of tungsten-nickel-iron alloy. United States.
Wallace, Steven A. Sun . "Method for determining the hardness of strain hardening articles of tungsten-nickel-iron alloy". United States. https://www.osti.gov/servlets/purl/865244.
@article{osti_865244,
title = {Method for determining the hardness of strain hardening articles of tungsten-nickel-iron alloy},
author = {Wallace, Steven A.},
abstractNote = {The present invention is directed to a rapid nondestructive method for determining the extent of strain hardening in an article of tungsten-nickel-iron alloy. The method comprises saturating the article with a magnetic field from a permanent magnet, measuring the magnetic flux emanating from the article, comparing the measurements of the magnetic flux emanating from the article with measured magnetic fluxes from similarly shaped standards of the alloy with known amounts of strain hardening to determine the hardness.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

Patent:

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