The effect of novel composite pretreatment on performances of plasma nitrided layer
Novel composite pretreatment combining laser shock peening and pre-oxidation was primarily adopted prior to plasma nitriding for 42CrMo steel. Optical microscope, scanning electron microscope, vickers microhardness tester and wear tester were used to systematically investigate the innovative enhance...
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doaj-37f71a66374f4dd0b783afdebfd685ac2020-11-25T02:46:29ZengElsevierJournal of Materials Research and Technology2238-78542020-09-019595319536The effect of novel composite pretreatment on performances of plasma nitrided layerLei Tang0Changjun Mao1Weiju Jia2Kunxia Wei3Jing Hu4Jiangsu Key Laboratory of Materials Surface Science and Technology, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou 213164, China; Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, ChinaJiangsu Key Laboratory of Materials Surface Science and Technology, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou 213164, China; Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, ChinaNorthwest Institute for Non-ferrous Metal Research, Xi’an, 710016, ChinaJiangsu Key Laboratory of Materials Surface Science and Technology, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou 213164, China; Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, China; Corresponding authors.Jiangsu Key Laboratory of Materials Surface Science and Technology, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou 213164, China; Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, China; Corresponding authors.Novel composite pretreatment combining laser shock peening and pre-oxidation was primarily adopted prior to plasma nitriding for 42CrMo steel. Optical microscope, scanning electron microscope, vickers microhardness tester and wear tester were used to systematically investigate the innovative enhancement effect of novel composite pretreatment on the performances of plasma nitrided layer. The results showed that the surface characteristics of composite pretreated sample had the advantages of both laser shock peening and pre-oxidation, thus brought out much thicker nitrided layer with excellent performances. Compared with conventional plasma nitriding, the thickness of compound layer and effective hardening layer was increased 1.8 times under the same nitriding condition. Meanwhile, the surface hardness was much higher; reaching 750 HV0.05, and the wear resistance was significantly enhanced, with nearly 60% decrease of the width of abrasive mark, comparing with that by conventional plasma nitriding without pretreatment.http://www.sciencedirect.com/science/article/pii/S223878542031471XComposite pretreatmentPlasma nitridingMicrostructureWear resistance |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lei Tang Changjun Mao Weiju Jia Kunxia Wei Jing Hu |
spellingShingle |
Lei Tang Changjun Mao Weiju Jia Kunxia Wei Jing Hu The effect of novel composite pretreatment on performances of plasma nitrided layer Journal of Materials Research and Technology Composite pretreatment Plasma nitriding Microstructure Wear resistance |
author_facet |
Lei Tang Changjun Mao Weiju Jia Kunxia Wei Jing Hu |
author_sort |
Lei Tang |
title |
The effect of novel composite pretreatment on performances of plasma nitrided layer |
title_short |
The effect of novel composite pretreatment on performances of plasma nitrided layer |
title_full |
The effect of novel composite pretreatment on performances of plasma nitrided layer |
title_fullStr |
The effect of novel composite pretreatment on performances of plasma nitrided layer |
title_full_unstemmed |
The effect of novel composite pretreatment on performances of plasma nitrided layer |
title_sort |
effect of novel composite pretreatment on performances of plasma nitrided layer |
publisher |
Elsevier |
series |
Journal of Materials Research and Technology |
issn |
2238-7854 |
publishDate |
2020-09-01 |
description |
Novel composite pretreatment combining laser shock peening and pre-oxidation was primarily adopted prior to plasma nitriding for 42CrMo steel. Optical microscope, scanning electron microscope, vickers microhardness tester and wear tester were used to systematically investigate the innovative enhancement effect of novel composite pretreatment on the performances of plasma nitrided layer. The results showed that the surface characteristics of composite pretreated sample had the advantages of both laser shock peening and pre-oxidation, thus brought out much thicker nitrided layer with excellent performances. Compared with conventional plasma nitriding, the thickness of compound layer and effective hardening layer was increased 1.8 times under the same nitriding condition. Meanwhile, the surface hardness was much higher; reaching 750 HV0.05, and the wear resistance was significantly enhanced, with nearly 60% decrease of the width of abrasive mark, comparing with that by conventional plasma nitriding without pretreatment. |
topic |
Composite pretreatment Plasma nitriding Microstructure Wear resistance |
url |
http://www.sciencedirect.com/science/article/pii/S223878542031471X |
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