Study of the nitrided layer obtained by different nitriding methods

In this study, plasma nitriding, gas nitriding and solid nitriding were performed in AISI H13, AISI P20 and N-8550 tool steels. The aim of the study was compare the acquired properties after the thermochemical treatments and evaluate the efficiency of the solid nitriding treatment. The samples were...

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Bibliographic Details
Main Author: Almeida,Elisangela Aparecida dos Santos de (author)
Other Authors: Costa,César Edil da (author), Milan,Júlio César Giubilei (author)
Format: article
Language:eng
Published: 2015
Subjects:
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762015000200460
Country:Brazil
Oai:oai:scielo:S1517-70762015000200460
Description
Summary:In this study, plasma nitriding, gas nitriding and solid nitriding were performed in AISI H13, AISI P20 and N-8550 tool steels. The aim of the study was compare the acquired properties after the thermochemical treatments and evaluate the efficiency of the solid nitriding treatment. The samples were analyzed using a microhardness tester and a scanning electron microscope. The typical nitriding layers were observed - white layer and diffusion layer. The phases Fe4N - γ´ and Fe2,3N - ε were identified using an X- Ray diffractometer. The microhardness values of the nitrided layers obtained by the solid nitriding treatment were compatible with the other values of microhardness obtained by plasma and gas nitriding. The thickness of the nitrided layer obtained by the solid nitriding treatment was irregular.