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An Anti-Corrosion and Wear-Resisting Compounding Nitrided Layer on Precise Pressed Parts of Soft Steels
Technical Paper
2002-01-1368
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A kind of gas-nitriding process compounding post-polishing and oxidizing was developed. It was revealed that direct quenching could obtain monomorphic dense ε-compound phase. Post-treatment effectively minimized surface porousness and brittleness, brought about fine surface decoration effect, made part's surface static friction factor μ reduce to 0.21∼0.23. No rust spots were found on surface of specimens when sprayed in 5%(wt) sodium chloride solution for 48 hours. Electrode potential value indicated that parts treated possess of better anti-corrosion property than single nitrided. The new process mitigated punch's loading and consumption of dies as well.
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Citation
Luo, X., Shao, H., and Liu, H., "An Anti-Corrosion and Wear-Resisting Compounding Nitrided Layer on Precise Pressed Parts of Soft Steels," SAE Technical Paper 2002-01-1368, 2002, https://doi.org/10.4271/2002-01-1368.Also In
References
- Huiyou Li QPQ Compounded Treating Technology in Salt Bath Machinery Industry Press Peking 1997 65 68
- Baoming Wei Metal Corrosion Theory and Its Application Press of Chemical Industry Beijing 1984 12