Friction Analysis on Scratch Deformation Modes of Visco-Elastic-Plastic Materials

Budi , Setiyana and I. , Syafaat and J. , Jamari and D.J. , Schipper (2012) Friction Analysis on Scratch Deformation Modes of Visco-Elastic-Plastic Materials. In: International Conference on Chemical and Material Engineering 2012. ISBN : 978-602-097-281-7, September 12 – 13, 2012, , Grand Candi Hotel, Semarang Indonesia.

[img]
Preview
PDF - Published Version
749Kb

Abstract

Understanding of abrasion resistance and associated surfaces deformation mechanisms is of primary importance in materials engineering and design. Instrumented scratch testing has proven to be a useful tool for characterizing the abrasion resistance of materials. Using a conical indenter in a scratch test may result in different deformation modes, like as elastic deformation, ironing, ductile ploughing and cutting. This paper presents the friction analysis of some deformation modes of visco-elastic-plastic behaving polymer materials, especially PEEK (poly etheretherketone). In general, it is accepted that the friction consist of an adhesion and a deformation component, which can be assumed to be independent to each others. During a scratch test, the friction coefficient is influenced by some parameters, such as the sharpness of indenter, the deformation modes and the degree of elastic recovery. Results show that the adhesion component strongly influences the friction in the elastic and ironing deformation mode (scratching with a blunt cone), friction for the cutting deformation mode (scratching with a sharp cone) is dominantly influenced by the deformation component. From the analysis, it can be concluded that the adhesion friction model is suitable for ironing - elastic deformation mode and the deformation friction model with elastic recovery is good for cutting mode. Moreover, the ductile ploughing mode is combination of the adhesion and plastic deformation friction model.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:adhesion, deformation, friction, scratch
Subjects:T Technology > TP Chemical technology
Divisions:UNDIP Conference/Seminar > International Conference on Chemical and Material Engineering 2012
Faculty of Engineering > Department of Chemical Engineering
Faculty of Engineering > Department of Chemical Engineering
ID Code:36955
Deposited By:teknik kimia
Deposited On:16 Nov 2012 00:10
Last Modified:16 Nov 2012 00:10

Repository Staff Only: item control page