Monitoring of stress corrosion cracking

Details Monitoring of stress corrosion cracking Monitoring of stress corrosion cracking

1995-04-06

1996-11-05

Brock, Michael

Measuring and testing

Embrittlement or erosion

73799, 422 53, G01N 1704, G01N 310

Patent

active

055719554

ABSTRACT:
A corrosion monitoring apparatus and method for determining the corrosive effects of a chemical environment, having an environmental pressure, on a vessel containing the chemical environment. A probe is exposed to the environment and is made of a material substantially similar to that of which the vessel is made. The probe has a sealed internal chamber which contains a pressurized fluid which is monitored. A pressure transducer is in communication with the sealed internal chamber of the first probe for translating any pressure change within the chamber into a (preferably electrical) signal which is indicated by an electrical meter or similar device. Stress corrosion cracking of the probe causes fluid leakage and, therefore, a pressure change.

REFERENCES:
patent: 4020696 (1977-05-01), Vrolyk
patent: 4389880 (1983-06-01), Robinet
Mars G. Fontana, Corrosion Engineering, Third Edition, McGraw-Hill, New York, 1986, pp. 109-142.

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