Formation of nitrides and carbides on titanium alloy surface through EDM

Mohammed , Baba Ndaliman and Khan, Ahsan Ali and Ali, Mohammad Yeakub (2012) Formation of nitrides and carbides on titanium alloy surface through EDM. Advanced Materials Research, 576. pp. 7-10. ISSN 1022-6680

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Abstract

In this investigation, electrical discharge machining (EDM) was done with Cu-TaC powder metallurgy (PM) electrode and urea solution dielectric fluid. The main objective is to improve the surface wear property of Ti-6Al-4V alloy through the formation of hard ceramic compounds on its surface during EDM. The experiments were conducted with peak current, Ip (3.5,5.5 A) and pulse duration, ton (3.3, 5.3 μsec) as the machining variables. The outputs investigated are surface characteristics and micro-hardness. The formation of nitrides, carbides and oxides of tantalum and titanium on the EDMed surface was confirmed. The highest micro-hardness of 902.2 Hv was obtained with Ip of 5.5 A and ton of 3.3 μsec.

Item Type:	Article (Journal)
Additional Information:	3129/25668
Uncontrolled Keywords:	EDM, nitrides, micro-hardness, urea dielectric fluid, Ti-6AI-4V-Cu-TaC electrode
Subjects:	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. Ahsan Ali Khan
Date Deposited:	07 Sep 2012 16:21
Last Modified:	07 Sep 2012 16:21
URI:	http://irep.iium.edu.my/id/eprint/25668

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