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Ambiguous Effect of cathodic polarization on crack growth as the general regularity of stress‐corrosion cracking of structural materials
Author(s) -
Marichev V. A.
Publication year - 1989
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19890400507
Subject(s) - cathodic protection , hydrogen embrittlement , materials science , stress corrosion cracking , polarization (electrochemistry) , cracking , corrosion , microstructure , metallurgy , corrosion fatigue , anode , composite material , chemistry , electrode
The present study is concerned with the possibility of using the ambiguous effect of cathodic polarization (AECP) on crack growth as a diagnostic tool for determining the role of local anodic dissolution and hydrogen embrittlement in the mechanism of stress‐corrosion cracking (SCC) of different structural materials, irrespective of their base, microstructure and strength. It is shown that AECP is the general regularity of SCC and that the unambiguous effect of polarization (either the acceleration or retardation of crack growth irrespective of loading conditions) may be viewed as a particular case of this general regularity.