RELATIONSHIP BETWEEN ACID INTERGRANULAR CORROSION AND CAUSTIC STRESS-CORROSION CRACKING OF ALLOY 600

被引：42

作者：

THEUS, GJ ^{[1
]}

机构：

[1] RES & DEV DIV,ALLIANCE,OH 44601

来源：

CORROSION | 1977年 / 33卷 / 01期

关键词：

CORROSION - Stress Corrosion Cracking - HEAT TREATMENT - Stress Relief;

D O I：

10.5006/0010-9312-33.1.20

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Modified Streicher and 288 C(550 F) electrochemical caustic stress corrosion tests were performed on Alloy 600 to determine the relationship between acid integranular attack susceptibility and caustic stress corrosion cracking (SCC) susceptibility. Mill annealed and solution annealed materials with and without a subsequent 621 C (1150 F) heat treatment (simulated stress relief) were evaluated. It is concluded that stress relieving Alloy 600 does improve its resistance to caustic SCC, and that resistance of Alloy 600 to acid intergranular attack does not imply resistance of Alloy 600 to caustic SCC. Therefore, the results demonstrate the need for selecting corrosion qualification tests which are relevant to service conditions.

引用

页码：20 / 26

页数：7

共 14 条

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