Morphological and wear behavior of low temperature thermochemical gaseous nitriding process

Paijan, Lailatul Harina and Maleque, Md. Abdul (2023) Morphological and wear behavior of low temperature thermochemical gaseous nitriding process. Jurnal Tribologi, 36. pp. 57-69. E-ISSN 2289-7232

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Abstract

In this study, the nitride layer based on incorporation of nitrogen diffusion via low temperature thermochemical nitriding process were prepared. Nitriding temperature, holding time and gas flow rate during nitriding process was used as the parameters to assess morphology and wear behavior. Nitriding holding time was varies for 4, 8 and 12 hours, meanwhile temperature and glass flow rate were keep constant. The thickness and hardness of nitride layer varied with the holding time with the thickest layer of 60.5 µm and surface hardness of 513.3 HV0.5. The nitride layers, containing expanded austenite, Fe3N and CrN phases, as well as solid solution in the stainless steel were developed during low temperature thermochemical gas nitriding process. The expanded austenite formation on the nitride layers demonstrates that the best wear behavior due to the highest hardness. The wear rate and CoF improved by 0.40 and 0.37 compared to untreated DSS, respectively. Furthermore, it was revealed that the worn surface showed very mild striation of wear for the 12 hours compared to 4 hours nitrided sample which demonstrated deeper grooves on the shorter nitriding process. It was demonstrated that nitriding process is capable and feasible to produce hard surface layer on DSS with higher hardness and wear resistance properties which can be used for tribological applications.

Item Type:	Article (Journal)
Subjects:	Q Science > QD Chemistry T Technology > T Technology (General) > T11.95 Industrial directories T Technology > TN Mining engineering. Metallurgy > TN600 Metallurgy T Technology > TS Manufactures > TS200 Metal manufactures. Metalworking
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Prof Dr. Md Abdul Maleque
Date Deposited:	29 Mar 2023 11:15
Last Modified:	24 Jan 2024 16:50
URI:	http://irep.iium.edu.my/id/eprint/104220

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• Morphological and wear behavior of low temperature thermochemical gaseous nitriding process. (deposited 10 Feb 2023 17:15)
  • Morphological and wear behavior of low temperature thermochemical gaseous nitriding process. (deposited 29 Mar 2023 11:15) [Currently Displayed]

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