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Influence of nitrogen flow rate on friction coefficient and surface roughness of tin coatings deposited on tool steel using arc method

Hamzah, Esah and Qourdjini, Ali and Ali, Mubarak and Parvez, Akhter and Mohd Toff, Mohd Radzi and Abdul Hamid, Mansor (2007) Influence of nitrogen flow rate on friction coefficient and surface roughness of tin coatings deposited on tool steel using arc method. Surface Review and Letters , 14 (5). pp. 1007-1013. ISSN 0218-625X

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Abstract

In the present study, the effect of various N2 gas flow rates on friction coefficient and surface roughness of TiN-coated D2 tool steel was examined by a commercially available cathodic arc physical vapor deposition (CAPVD) technique. A Pin-on-Disc test was carried out to study the Coefficient of friction (COF) versus sliding distance. A surface roughness tester measured the surface roughness parameters. The minimum values for the COF and surface roughness were recorded at a N2 gas flow rate of 200 sccm. The increase in the COF and surface roughness at a N2 gas flow rate of 100 sccm was mainly attributed to an increase in both size and number of titanium particles, whereas the increase at 300 sccm was attributed to a larger number of growth defects generated during the coating process. These ideas make it possible to optimize the coating properties as a function of N2 gas flow rate for specific applications, e.g. cutting tools for automobiles, aircraft, and various mechanical parts.

Item Type:Article
Uncontrolled Keywords:Coatings TiN cathodic arc friction coefficient surface roughness
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:6888
Deposited By: Mohamad Ali Duki
Deposited On:23 Nov 2008 13:00
Last Modified:23 Nov 2008 13:00

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