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The wear behaviour of duplex treated AISI 5140 steel

The wear behaviour of duplex treated AISI 5140 steel Purpose – This work aims to investigate the wear behavior of manganese phosphate coating on plasma nitrided AISI 5140 steel. Design/methodology/approach – Prior to manganese phosphate coating, plasma nitriding of substrates was performed at gas mixture of 50 percent H 2 and 50 percent N 2 , for the different treatment parameters. The structural, mechanical and tribological properties of the substrates were determined using hardness test, optical microscope, scanning electron microscopy , X‐ray diffraction and pin‐on‐disk tribotester. The wear behavior of untreated, nitrided and duplex treated substrates was evaluated under dry sliding conditions. Findings – The results indicated that the duplex treatment improved the wear behavior. It was also observed that manganese phosphating of the nitrided substrates at low temperature (450°C‐2h‐N) resulted in a decrease of the wear rate and yielded a reduction in the friction coefficient by forming a transfer film at the counter face. Originality/value – This study can be a practical reference and offers insight into the effects of duplex treating on the increase of wear resistance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

The wear behaviour of duplex treated AISI 5140 steel

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References (32)

Publisher
Emerald Publishing
Copyright
Copyright © 2011 Emerald Group Publishing Limited. All rights reserved.
ISSN
0036-8792
DOI
10.1108/00368791111154959
Publisher site
See Article on Publisher Site

Abstract

Purpose – This work aims to investigate the wear behavior of manganese phosphate coating on plasma nitrided AISI 5140 steel. Design/methodology/approach – Prior to manganese phosphate coating, plasma nitriding of substrates was performed at gas mixture of 50 percent H 2 and 50 percent N 2 , for the different treatment parameters. The structural, mechanical and tribological properties of the substrates were determined using hardness test, optical microscope, scanning electron microscopy , X‐ray diffraction and pin‐on‐disk tribotester. The wear behavior of untreated, nitrided and duplex treated substrates was evaluated under dry sliding conditions. Findings – The results indicated that the duplex treatment improved the wear behavior. It was also observed that manganese phosphating of the nitrided substrates at low temperature (450°C‐2h‐N) resulted in a decrease of the wear rate and yielded a reduction in the friction coefficient by forming a transfer film at the counter face. Originality/value – This study can be a practical reference and offers insight into the effects of duplex treating on the increase of wear resistance.

Journal

Industrial Lubrication and TribologyEmerald Publishing

Published: Aug 16, 2011

Keywords: Nitriding; Phosphate coating; Duplex treating; Wear; Steel; Coating technology

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