SOME ELECTROCHEMICAL ASPECTS OF THE STRESS CORROSION CRACKING OF STEELS IN LIQUID AMMONIA ENVIRONMENTS.

D. C. Deegan; B. E. Wilde; R. W. Staehle

doi:10.5006/0010-9312-32.4.139

SOME ELECTROCHEMICAL ASPECTS OF THE STRESS CORROSION CRACKING OF STEELS IN LIQUID AMMONIA ENVIRONMENTS.

D. C. Deegan, B. E. Wilde, R. W. Staehle

Chemical Engineering and Materials Science

Research output: Contribution to specialist publication › Article

12 Scopus citations

Abstract

Some electrochemical aspects of the stress corrosion cracking (SCC) behavior of ASTM A517 Grade F steel in liquid ammonia environments at 25 C have been studied. Electrode potentials were measured during SCC tests by means of thallium/saturated thallous chloride/ammonia reference half cell. The effects of controlled additions of oxygen and nitrogen (species in combination known to cause SCC), as well as the inhibitive properties of water, were investigated. The role of water as an inhibitor is to assist in the repassivation of the surface films, as indicated by the fact that water additions promote more noble potentials ( plus 500 mV).

Original language	English (US)
Pages	139-143
Number of pages	5
Volume	32
No	4
Specialist publication	Corrosion
DOIs	https://doi.org/10.5006/0010-9312-32.4.139
State	Published - Jan 1 1976

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abstract = "Some electrochemical aspects of the stress corrosion cracking (SCC) behavior of ASTM A517 Grade F steel in liquid ammonia environments at 25 C have been studied. Electrode potentials were measured during SCC tests by means of thallium/saturated thallous chloride/ammonia reference half cell. The effects of controlled additions of oxygen and nitrogen (species in combination known to cause SCC), as well as the inhibitive properties of water, were investigated. The role of water as an inhibitor is to assist in the repassivation of the surface films, as indicated by the fact that water additions promote more noble potentials ( plus 500 mV).",

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AB - Some electrochemical aspects of the stress corrosion cracking (SCC) behavior of ASTM A517 Grade F steel in liquid ammonia environments at 25 C have been studied. Electrode potentials were measured during SCC tests by means of thallium/saturated thallous chloride/ammonia reference half cell. The effects of controlled additions of oxygen and nitrogen (species in combination known to cause SCC), as well as the inhibitive properties of water, were investigated. The role of water as an inhibitor is to assist in the repassivation of the surface films, as indicated by the fact that water additions promote more noble potentials ( plus 500 mV).

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