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Type: Artigo de periódico
Title: Effect of Carbon on the Compound Layer Properties of AISI H13 Tool Steel in Pulsed Plasma Nitrocarburizing
Author: Basso, RLO
Figueroa, CA
Zagonel, LF
Pastore, HO
Wisnivesky, D
Alvarez, F
Abstract: Due to the mechanical and inertness properties of the epsilon-Fe(2-3)N phase, its formation as a compact monolayer is most wanted in plasma surface treatments of steels. This phase can be obtained by the inclusion of carbon species in the plasma. In this work, we present a systematic study of the carbon influence on the compound layer in an AISI H13 tool steel by pulsed plasma nitrocarburizing process with different gaseous ratios (0% <= [CH(4)]/[N(2)_CH(4)_H(2)] <= 4%). The plasma treatment was carried out for 5 h at 575 degrees C. The microstructure and phase composition of the modified layers were studied by scanning electron microscopy and X-ray diffraction, respectively. X-Ray photoelectron spectroscopy was used to measure the relative concentration of carbon and nitrogen on the surface. The hardening profile induced by the nitrocarburized process is also reported.
Subject: hardness
plasma nitriding
plasma nitrocarburizing
tool steel
surface modification
Country: Alemanha
Editor: Wiley-v C H Verlag Gmbh
Rights: fechado
Identifier DOI: 10.1002/ppap.200731806
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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