【摘要】 利用盐雾加速试验研究了模拟海洋及工业大气环境中SiC/20钢双连续相复合材料的腐蚀行为.结果表明,在5.0%NaCl及0.01 mol/L的NaHSO₃盐雾中,其腐蚀失重均比基体20钢的稍小,而且NaCl和NaHSO₃对其腐蚀作用相当;在两种环境下,复合材料均表现出良好的抗腐蚀能力,主要原因是在腐蚀产物中形成了FeOOH相,降低了复合材料的腐蚀速率.更多还原

【Abstract】 The corrosion behavior of co-continuous SiC/20 steel composite in simulated ocean and industrial atmospheres has been investigated by accelerated salt spray test.The results showed that mass-loss of the SiC/20 steel composite was slightly less than that of pure 20 steel in both 5.0%NaCl and 0.01 mol/L NaHSO₃ salt spray.For the composite,the corrosion effect of NaCl was approximately equal to that of NaHSO₃.The composite presented better anti-corrosion performance than the substrate in the two environments.The main reason is the formation of FeOOH phase,which diminishes the corrosion rate of the composite.更多还原