Preparation and characterization of TIG-alloyed hybrid composite coatings for high-temperature tribological applications

Adeyemi, Bello K. and Maleque, Md. Abdul and Ahmad, Zuraida and Adebisi, Adetayo A. and Mirdha, S. (2015) Preparation and characterization of TIG-alloyed hybrid composite coatings for high-temperature tribological applications. In: Malaysian International Tribology Conference 2015, 16th-17th Nov. 2015, Penang, Malaysia.

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Abstract

There is an increasing interest in tribology community for developing high performance composite coating to meet severe tribological conditions of advanced mechanical system which requires high operating temperature and long life. In the present work, powder preplacement and tungsten inert gas (TIG) torch melting techniques have been employed to generate titanium carbide (TiC) based composite coatings containing hexagonal boron nitride(hBN) or Ni-P coated hBN (Ni-P-hBN) lubricant additive. The effect of preplaced powder composition on the cross-sectional microstructures and surface hardness of the developed coatings were analysed. Moreover, the friction and wear behaviours of the composite coatings at 600oC were evaluated using a Ducom ball-on-disc wear test rig. The results indicate that TIG-melted surface containing TiC and Ni-P-hBN powder mixtures exhibits optimum properties combining good control of microstructures and uniformly distributed hardness as well as excellent tribological properties due to enhanced wettability action of Ni-P encapsulated hBN particles.

Item Type:	Conference or Workshop Item (UNSPECIFIED)
Additional Information:	6103/47770 (ISBN: 978-967-13625-0-1)
Uncontrolled Keywords:	TIG torch melting; solid lubricant; hybrid composite coating; Ni-P deposition; hBN
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction T Technology > TN Mining engineering. Metallurgy > TN600 Metallurgy T Technology > TP Chemical technology > TP200 Manufacture and use of chemicals
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:	26 Jan 2016 16:22
Last Modified:	06 Dec 2017 09:38
URI:	http://irep.iium.edu.my/id/eprint/47770

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