EFFECTS OF CARBIDES ON SUSCEPTIBILITY OF ALLOY-600 TO STRESS-CORROSION CRACKING IN HIGH-TEMPERATURE WATER

Authors
REBAK RB XIA Z SZKLARSKASMIALOWSKA Z
Citation
Rb. Rebak et al., EFFECTS OF CARBIDES ON SUSCEPTIBILITY OF ALLOY-600 TO STRESS-CORROSION CRACKING IN HIGH-TEMPERATURE WATER, Corrosion, 49(11), 1993, pp. 867-876
Citations number
33
Categorie Soggetti
Metallurgy & Mining
Journal title
Corrosion → ACNP
ISSN journal
00109312
Volume
49
Issue
11
Year of publication
1993
Pages
867 - 876
Database
ISI
SICI code
0010-9312(1993)49:11<867:EOCOSO>2.0.ZU;2-R
Abstract
The electrochemical behavior of sensitized, carburized, and mill-annea led alloy 600 (UNS N06600) was studied in hydrogenated, aerated, and h igh-temperature (250-degrees-C to 350-degrees-C) dilute aqueous soluti ons. In high-temperature water at high anodic potentials, the current density (CD) from carbide dissolution was higher than CD from matrix d issolution. In oxidizing environments, intergranular stress corrosion cracking propagated in alloy 600 by dissolution of continuous or semic ontinuous carbides at the grain boundary, in sensitized and non-sensit ized materials.