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논문 기본 정보

자료유형
학술저널
저자정보
M. M. Sadawy (Al-Azhar University) Saad. M. Fayed (Al-Azhar University) Mahmoud Tayea (Al-Azhar University) I. G. El‑Batanony (Al-Azhar University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.30 No.3
발행연도
2024.3
수록면
568 - 584 (17page)
DOI
10.1007/s12540-023-01521-8

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This study investigated the role of SiC as a reinforcement on microstructure, corrosion, and electrochemical properties ofCu/xSiC (x = 0, 5, 10, 15, 20, 25, and 30 vol% SiC) composites. The powder metallurgy route was used to fabricate Cu/SiC composite. The distribution of SiC reinforcing particles in the Cu matrix and their interfaces were investigated usingoptical and SEM/EDS microscopes. The various phases of Cu strengthened with SiC particles were detected using an X-raydiffractometer. The anticorrosion behavior and electrochemical properties of composites were investigated using variouselectrochemical techniques in 3.5 wt% NaCl solution. The electrochemical studies showed that the inclusion of SiC particlesin the Cu matrix improved the resistance to corrosion. It was found that as the reinforcing particles increased to 20 vol%,the corrosion potential increased from − 240 to − 183 mVAg/AgCl, and the corrosion current density decreased from 5.01 to0.02 μA cm−2, while the passive current density decreased from 17.58 to 4.74 × 10–4 A cm−2. This behavior resulted fromthe nucleation and production of a good protective layer. On another side, increasing reinforcing particles over 20 vol%,the corrosion current density increased from 0.05 to 0.63 μA cm−2, while the corrosion potential shifted from − 196 to− 206 mVAg/AgCl.

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