발간논문

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Vol.17, No.6, 484 ~ 491, 1979
Title
The Effect of Temperature on the Strees Corrosion Cracking of Austenitic Stainless Steel
권훈Hoon Kwon, 김종희Chong Hee Kim
Abstract
Stress corrosion behavior of type-304 austenitic stainless steel in 45.5wt.% MgCl₂ solution was studied with U-bend specimen between 125℃ to 155℃ solution temperature. Maximum crack depth increased logarithmically with the increase of time exposed to solution at various temperatures. From maximum crack depth measurement, induction period before cracking and crack propagation period were evaluated. The result indicated that these periods decreased with the increasing corrosive solution temperature. Apparent activation energy obtained from Arrhenius equation showed that the apparent activation energy for induction period was larger than that for crack propagation period. This study emphasizes the importance of corrosive solution temperature in constant strain.
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