Modified surface of duplex stainless steel using tig torch and diffusion techniques

Maleque, Md. Abdul and Paijan, Lailatul Harina (2017) Modified surface of duplex stainless steel using tig torch and diffusion techniques. In: Malaysia Technology Expo (MTE 2017), 16th-18th February 2017, Kuala Lumpur, Malaysia. (Unpublished)

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Abstract

Surface modified duplex stainless steel (DSS) is very attractive material for a wide range of high temperature uses including tribological application. Melting technique using tungsten inert gas (TIG) torch and diffusion technique using gas nitriding are the effective processing routes with simple and cost effective way. In this invention, TIG torch melting technique is used to develop composite coating on DSS with the preplacement of SiC ceramic particles. Finding showed that the hard layer produce the dense and thick coating with good metallurgical bonding to the base material.In nitriding process, thermal heat acts as a catalyst for the decomposition of ammonia into nascent nitrogen which diffuse into DSS surface. Hard surface layer produce the dense coating with better wear resistance.Both techniques shared improved hardness and better wear resistance. However, TIG torch melting technique is more promising compared to nitriding technique.

Item Type:	Conference or Workshop Item (Poster)
Additional Information:	6103/55900
Uncontrolled Keywords:	Modified surface,duplex stainless steel, tig torch, diffusion techniques
Subjects:	T Technology > T Technology (General) > T11.95 Industrial directories T Technology > T Technology (General) > T391 Exhibitions. World's fairs T Technology > TN Mining engineering. Metallurgy > TN600 Metallurgy
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:	13 Apr 2017 15:58
Last Modified:	13 Apr 2017 15:58
URI:	http://irep.iium.edu.my/id/eprint/55900

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