Author(s)

S. Stramke, U. Huchel & J. Crummenauer

Abstract

Pulsed plasma nitriding and combined processes S. Stramke, U. Huchel, J. Crummenauer. ABSTRACT Alloy steel nitriding is currently employed to improve corrosion and wear resistance, to increase fatigue strength and to increase superficial hardness. The properties of nitrided parts can be further improved by adding processing steps to the nitriding program. An oxidation step is added to produce a black Fe^ layer: A CVD step is added, to deposit hard coatings on hardened and tempered alloy steels, for increased wear resistance. Nitriding provides enhanced support for this overlay coating. Deposition of these layers can be completed during a single cycle within the nitriding retort, by simply extending the process program. INTRODUCTION Alloy steel nitriding is currently employed to improve corrosion and wear resistance, to increase fatigue strength and to increase superficial hardness. The corrosion and wear properties of nitrided parts can be further improved by- adding processing st

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