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Title: Corrosion testing using isotopes

Abstract

A method is described for determining the corrosion behavior of a material with respect to a medium in contact with the material by: implanting a substantially chemically inert gas in a matrix so that corrosion experienced by the material causes the inert gas to enter the medium; placing the medium in contact with the material; and measuring the amount of inert gas which enters the medium. A test sample of a material whose resistance to corrosion by a medium is to be tested is described composed of: a body of the material, which body has a surface to be contacted by the medium; and a substantially chemically inert gas implanted into the body to a depth below the surface. A test sample of a material whose resistance to corrosion by a medium is to be tested is described composed of: a substrate of material which is easily corroded by the medium, the substrate having a surface; a substantially chemically inert gas implanted into the substrate; and a sheet of the material whose resistance to corrosion is to be tested, the sheet being disposed against the surface of the substrate and having a defined thickness. 3 figs.

Inventors:
Publication Date:
Research Org.:
Westinghouse Idaho Nuclear Co
OSTI Identifier:
170458
Patent Number(s):
US 5,473,643/A/
Application Number:
PAN: 8-292,758
Assignee:
Westinghouse Idaho Nuclear Co., Idaho Falls, ID (United States) PTO; SCA: 360105; 360205; 360604; PA: EDB-96:027911; SN: 96001517630
DOE Contract Number:
AC07-84ID12435
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 5 Dec 1995
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MATERIALS; CORROSION RESISTANCE; TRACER TECHNIQUES; MATERIALS TESTING; INERT ATMOSPHERE; MATRIX MATERIALS; MEASURING METHODS; CALIBRATION STANDARDS; EROSION

Citation Formats

Hohorst, F.A. Corrosion testing using isotopes. United States: N. p., 1995. Web.
Hohorst, F.A. Corrosion testing using isotopes. United States.
Hohorst, F.A. 1995. "Corrosion testing using isotopes". United States. doi:.
@article{osti_170458,
title = {Corrosion testing using isotopes},
author = {Hohorst, F.A.},
abstractNote = {A method is described for determining the corrosion behavior of a material with respect to a medium in contact with the material by: implanting a substantially chemically inert gas in a matrix so that corrosion experienced by the material causes the inert gas to enter the medium; placing the medium in contact with the material; and measuring the amount of inert gas which enters the medium. A test sample of a material whose resistance to corrosion by a medium is to be tested is described composed of: a body of the material, which body has a surface to be contacted by the medium; and a substantially chemically inert gas implanted into the body to a depth below the surface. A test sample of a material whose resistance to corrosion by a medium is to be tested is described composed of: a substrate of material which is easily corroded by the medium, the substrate having a surface; a substantially chemically inert gas implanted into the substrate; and a sheet of the material whose resistance to corrosion is to be tested, the sheet being disposed against the surface of the substrate and having a defined thickness. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1995,
month =
}
  • A method for determining the corrosion behavior of a material with respect to a medium in contact with the material by: implanting a substantially chemically inert gas in a matrix so that corrosion experienced by the material causes the inert gas to enter the medium; placing the medium in contact with the material; and measuring the amount of inert gas which enters the medium. A test sample of a material whose resistance to corrosion by a medium is to be tested, composed of: a body of the material, which body has a surface to be contacted by the medium; andmore » a substantially chemically inert gas implanted into the body to a depth below the surface. A test sample of a material whose resistance to corrosion by a medium is to be tested, composed of: a substrate of material which is easily corroded by the medium, the substrate having a surface; a substantially chemically inert gas implanted into the substrate; and a sheet of the material whose resistance to corrosion is to be tested, the sheet being disposed against the surface of the substrate and having a defined thickness.« less
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  • The present invention is directed to an apparatus and method for holding one or more test electrodes of precisely known exposed surface area. The present invention is particularly useful in a device for determining the corrosion properties of the materials from which the test electrodes have been formed. The present invention relates to a device and method for holding the described electrodes wherein the exposed surface area of the electrodes is only infinitesimally decreased. Further, in the present invention the exposed, electrically conductive surface area of the contact devices is small relative to the test electrode surface area. The holdermore » of the present invention conveniently comprises a device for contacting and engaging each test electrode at two point contacts infinitesimally small in relation to the exposed surface area of the electrodes.« less