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

被引：23
|
作者：
REBAK, RB
XIA, Z
SZKLARSKASMIALOWSKA, Z
机构：
[1] Ohio State Univ, Columbus, OH
来源：
CORROSION | 1993年 / 49卷 / 11期
关键词：
ALLOY-600; CARBIDE; GALVANIC CELL; INTERGRANULAR STRESS CORROSION CRACKING; STRESS CORROSION CRACKING;
D O I：
10.5006/1.3316012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The electrochemical behavior of sensitized, carburized, and mill-annealed alloy 600 (UNS N06600) was studied in hydrogenated, aerated, and high-temperature (250-degrees-C to 350-degrees-C) dilute aqueous solutions. In high-temperature water at high anodic potentials, the current density (CD) from carbide dissolution was higher than CD from matrix dissolution. In oxidizing environments, intergranular stress corrosion cracking propagated in alloy 600 by dissolution of continuous or semicontinuous carbides at the grain boundary, in sensitized and non-sensitized materials.
引用
收藏
页码：867 / 876
页数：10
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