Browse Publications Technical Papers 2002-01-1368
2002-03-19

An Anti-Corrosion and Wear-Resisting Compounding Nitrided Layer on Precise Pressed Parts of Soft Steels 2002-01-1368

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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