Influence of thermal input on microstructure and wear properties of surface alloyed DSS with SiC by TIG melting techniques

Paijan, Lailatul Harina and Mamat, Mohd Fauzi and Abu Bakar, Mohd Hadzley and Abd Aziz, Mohd Syafiq (2024) Influence of thermal input on microstructure and wear properties of surface alloyed DSS with SiC by TIG melting techniques. Malaysian Journal of Microscopy, 20 (1). pp. 123-133. ISSN 1823-7010

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Abstract

In arc TIG torch welding, thermal input is important because it affects the thermal efficiency and quality of the welded materials. A change in the microstructure with the deposition of ceramic particles can have a direct effect on the improvement of wear properties of a surface alloying using various thermal input of TIG torch welding. This work is required due to the limitation of AISI Duplex-2205 which has weaknesses in wear properties during application. In this work, this material was surface alloyed with addition of SiC ceramic powder with particle size of 100 µm and melted using different thermal input of TIG torch melting heat source to improve the microstructure and wear properties. Microstructural analysis, micro-hardness and wear properties were conducted on this material at different thermal input conditions. The obtained microstructural examination was correlated with corresponding hardness and wear properties, which were determined from morphological, hardness value on the top surface and wear rate evaluation. The highest hardness with value of 1600 Hv and wear rate with value of 2.3 x 10-4 mm3/Nm was obtained in the sample fabricated under thermal input of 0.768 KJ/mm. The microstructural changes observed on the surface alloyed DSS with the formation of dendrites microstructures due to re-solidification between AISI Duplex-2205 and SiC ceramic particles which indicated the good hardness properties against wear degradation in tribological applications.

Item Type:	Article
Uncontrolled Keywords:	Thermal input, Microstructure, Wear, Surface alloyed, TIG torch
Divisions:	Faculty Of Industrial And Manufacturing Technology And Engineering
Depositing User:	Sabariah Ismail
Date Deposited:	24 Jul 2024 12:15
Last Modified:	26 Jul 2024 15:08
URI:	http://eprints.utem.edu.my/id/eprint/27588
Statistic Details:	View Download Statistic

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