Electrochemical aspects of stress-corrosion cracking of sensitised stainless steels

R. C. Newman; K. Sieradzki

doi:10.1016/0010-938X(83)90068-9

Electrochemical aspects of stress-corrosion cracking of sensitised stainless steels

R. C. Newman, K. Sieradzki

Research output: Contribution to journal › Article › peer-review

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Abstract

The intergranular stress-corrosion cracking (SCC) of sensitised Type 304 stainless steel has been studied using sodium thiosulphate solutions at room temperature. Electrochemical aspects of the cracking have been examined using a potentiostatic scratching electrode technique applied to simulated grain boundary alloys. These results are compared with the current transients observed after intergranular fracture of embrittled specimens under the electrolyte. Dissolution kinetics within actual propagating cracks have been examined using load modulation. Rapid intergranular failure in a thiosulphate solution can be induced by successive load pulses of extremely short duration. Difficulties in accounting for the SCC velocities by an electrochemical mechanism are discussed.

Original language	English (US)
Pages (from-to)	363-378
Number of pages	16
Journal	Corrosion Science
Volume	23
Issue number	4
DOIs	https://doi.org/10.1016/0010-938X(83)90068-9
State	Published - 1983
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science

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10.1016/0010-938X(83)90068-9

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title = "Electrochemical aspects of stress-corrosion cracking of sensitised stainless steels",

abstract = "The intergranular stress-corrosion cracking (SCC) of sensitised Type 304 stainless steel has been studied using sodium thiosulphate solutions at room temperature. Electrochemical aspects of the cracking have been examined using a potentiostatic scratching electrode technique applied to simulated grain boundary alloys. These results are compared with the current transients observed after intergranular fracture of embrittled specimens under the electrolyte. Dissolution kinetics within actual propagating cracks have been examined using load modulation. Rapid intergranular failure in a thiosulphate solution can be induced by successive load pulses of extremely short duration. Difficulties in accounting for the SCC velocities by an electrochemical mechanism are discussed.",

author = "Newman, {R. C.} and K. Sieradzki",

note = "Funding Information: Acknowledgements---This work was supported by the U.S. Department of Energy, Division of Basic Energy Sciences, under Contract No. DE-AC02-76CH00016. The assistance of Kenneth Sutter and Ronald Graeser in the experimental work is gratefully acknowledged. Yako Sanborn and Robert Sabatini performed the computer programming and scanning electron microscopy, respectively.",

year = "1983",

doi = "10.1016/0010-938X(83)90068-9",

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pages = "363--378",

journal = "Corrosion Science",

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T1 - Electrochemical aspects of stress-corrosion cracking of sensitised stainless steels

AU - Newman, R. C.

AU - Sieradzki, K.

N1 - Funding Information: Acknowledgements---This work was supported by the U.S. Department of Energy, Division of Basic Energy Sciences, under Contract No. DE-AC02-76CH00016. The assistance of Kenneth Sutter and Ronald Graeser in the experimental work is gratefully acknowledged. Yako Sanborn and Robert Sabatini performed the computer programming and scanning electron microscopy, respectively.

PY - 1983

Y1 - 1983

N2 - The intergranular stress-corrosion cracking (SCC) of sensitised Type 304 stainless steel has been studied using sodium thiosulphate solutions at room temperature. Electrochemical aspects of the cracking have been examined using a potentiostatic scratching electrode technique applied to simulated grain boundary alloys. These results are compared with the current transients observed after intergranular fracture of embrittled specimens under the electrolyte. Dissolution kinetics within actual propagating cracks have been examined using load modulation. Rapid intergranular failure in a thiosulphate solution can be induced by successive load pulses of extremely short duration. Difficulties in accounting for the SCC velocities by an electrochemical mechanism are discussed.

AB - The intergranular stress-corrosion cracking (SCC) of sensitised Type 304 stainless steel has been studied using sodium thiosulphate solutions at room temperature. Electrochemical aspects of the cracking have been examined using a potentiostatic scratching electrode technique applied to simulated grain boundary alloys. These results are compared with the current transients observed after intergranular fracture of embrittled specimens under the electrolyte. Dissolution kinetics within actual propagating cracks have been examined using load modulation. Rapid intergranular failure in a thiosulphate solution can be induced by successive load pulses of extremely short duration. Difficulties in accounting for the SCC velocities by an electrochemical mechanism are discussed.

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Electrochemical aspects of stress-corrosion cracking of sensitised stainless steels

Abstract

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