Corrosion and stress corrosion cracking behavior of equal channel angular pressed oxygen-free copper in 3.5% NaCl solution |
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| Authors: | Y. H. Jang S. S. Kim S. Z. Han C. Y. Lim C. J. Kim |
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| Affiliation: | (1) Division of Materials Science and Engineering, Engineering Research Institute, Gyeongsang National University, Chinju, 660-701, Korea;(2) Materials Technology Department, Korea Institute of Machinery and Materials, Changwon, 641-010, Korea |
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| Abstract: | In the present study, the corrosion and stress corrosion cracking (SCC) behavior of equal channel angular pressed (ECAPed)
oxygen-free copper was examined in 3.5% NaCl solution. The specimen with two ECAP process cycles was found to have the greatest
resistance to corrosion and SCC in 3.5% NaCl solution among the specimens studied, while the resistance varied in a complex
manner with different number of ECAP process cycles. Micrographic observation and differential scanning calorimeter study
suggested that both corrosion and SCC behavior of ECAPed copper was strongly dependent on the microstructural evolution, including
the change in grain size and dislocation density, during ECAP process. |
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