Investigations into Transgranular and Intergranular Stress Corrosion Cracking of Austenitic Stainless Steels in Hot Magnesium Chloride Solutions.

被引:0
|
作者
Kessler, K.J. [1 ]
Kaesche, H. [1 ]
机构
[1] Kraftwerkunion Erlangen, Erlangen, West Ger, Kraftwerkunion Erlangen, Erlangen, West Ger
来源
Werkstoffe und Korrosion | 1984年 / 35卷 / 05期
关键词
STAINLESS STEEL - Corrosion Protection;
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摘要
The stress corrosion cracking (SCC) of austenitic stainless steels in hot magnesium chloride solutions is known to be transgranular. Therefore the slip-step-dissolution model is most favorable when explaining the failure mechanism. Constant load and constant extension rate tests (CERT) show that both methods are almost equivalent. Moreover constant extension rate tests in more concentrated magnesium chloride solutions at 135 degree C reveal a small potential range of intergranular stress corrosion cracking more negative than the range of transgranular SCC.
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页码:171 / 178
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