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采用真空渗氮法对6063铝合金进行氮化处理,并对原样和氮化样进行铜加速盐雾腐蚀。采用腐蚀质量损失和最大腐蚀坑深来分析实验组与对照组试样在盐雾环境中的腐蚀情况,并结合扫描电镜(SEM)和电化学极化曲线法对6063铝合金的腐蚀行为进行研究。结果表明:真空氮化提高了6063铝合金的抗腐蚀性,并且在本试验条件下,500和540℃氮化的样品具有最优的综合耐蚀性。
The vacuum nitriding method of 6063 aluminum alloy nitriding, and the original sample and nitride-like copper accelerated salt spray corrosion. Corrosion of 6063 aluminum alloy was studied by using corrosion mass loss and maximum corrosion depth to analyze corrosion of test specimens in the salt spray environment. SEM and electrochemical polarization curves were used to study the corrosion behavior of 6063 aluminum alloy . The results show that the vacuum nitriding improves the corrosion resistance of 6063 aluminum alloy, and under the test conditions, the nitrided samples at 500 and 540 ℃ have the best comprehensive corrosion resistance.