2013•Journal of Guizhou Normal UniversityRequires access

Influence of temperature on corrosion resistance of the vacuum nitriding layer on 2024 aluminum alloy

Feng Ying

Abstract

2024 aluminum alloy was vacuumed nitride at various temperatures.2024 aluminum alloy and the nitrided sample were processed by copper accelerated salt spray corrosion test.The corrosion rates of 2024 aluminum alloy and the nitrided sample in salt fog environment were examined with the method of the weight loss and the maximum corrosion depth.The corrosion features of 2024 aluminum alloy and the nitrided sample was studied by photos and PDS.The results showed that the vacuum nitriding can improve the uniform corrosion resistance and the pitting corrosion resistance of 2024 aluminum alloy.To sum up,the vacuum nitriding layer has the best corrosion resistance at 540℃.

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Key concepts: Nitriding, Corrosion, Materials science, Metallurgy, Alloy, 6111 aluminium alloy, Aluminium, Nitride