Corrosion Behavior of SiCp/2024 Al Matrix Composites in 3.5 wt pct Sodium Chloride

材料科学技术（英文）, 2002, 18(3): 261-263.

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1.School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China

2.School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China

3.School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China

4.School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China

5.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

6.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

7.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

基金项目: The financial supports from the Research Fund for the Doctoral Program of Higher Education(97014517)

Corrosion Behavior of SiCp/2024 Al Matrix Composites in 3.5 wt pct Sodium Chloride

Keywords： SiCp/2024Al matrix composites

The influences of volume fraction and particle size of SiC particulate reinforcements on the corrosion characteristics of SiCp/2024 Al metal matrix composites in aerated 3.5 wt pct NaCl aqueous solution were investigated. The electrochemical behavior was investigated by potentiodynamic polarization and electrochemical impedance spectroscopy, the general corrosion behavior of the composites was studied further by immersion tests. The results showed that pitting susceptibility was about the same for the composites and the alloy. The corrosion potentials were also independent of SiC phase. The corrosion resistance for the composites decreased as the volume fraction increased or particle size decreased.

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Corrosion Behavior of SiCp/2024 Al Matrix Composites in 3.5 wt pct Sodium Chloride

参考文献