Corrosion Science and Technology

The Corrosion Science Society of Korea (한국부식방식학회)
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Corrosion Behavior of Silicon Carbide/7091 Aluminum Matrix Composites

탄화규소/7091알루미늄 복합재료의 부식거동

  • Kang, Wooseung (Dept. of Metallurgical & Materials Engineering, Inha Technical College)
  • 강우승 (인하공업전문대학 금속재료과)
  • Received : 2012.05.07
  • Accepted : 2012.08.13
  • Published : 2012.08.31
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Abstract

The effects of volume fraction (15-30%) of SiC particulate reinforcements on the corrosion behavior of SiCp/7091 Al composites in the 3.5% NaCl solution were studied by electrochemical techniques and scanning electron microscopy. The results showed that the amount of SiC particulate reinforcements did not cause much difference in the corrosion behavior of SiCp/7091 Al composites but the corrosion rate was proportional to the amount of SiCp reinforcement. And numerous pits and severe dissolution of the matrix was observed probably due to the discontinuities and galvanic effects between Al matrix and SiC reinforcements.

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References

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