0
research-article

Wear rate and entropy generation sources in a Ti6Al4V - WC/10Co sliding pair

[+] Author and Article Information
J. S. Rudas

Tribology and Surfaces Group Universidad Nacional de Colombia Medellin, Colombia;Energy Research and Innovation Group Institución Universitaria Pascual Bravo Medellin, Colombia
jsrudas@unal.edu.co

L. M. Gomez

Research Group in Dynamic Processes Universidad Nacional de Colombia Medellin, Colombia
limage@unal.edu.co

A. Toro

Tribology and Surfaces Group Universidad Nacional de Colombia Medellin, Colombia
aotoro@unal.edu.co

J. M. Gutiérrez

Material Composite Group University of Cádiz Algeciras, Spain
josemaria.gutierrez@uca.es

A. Corz

Material Composite Group University of Cádiz Algeciras, Spain
alfonso.corz@uca.es

1Corresponding author.

ASME doi:10.1115/1.4036321 History: Received December 28, 2016; Revised March 10, 2017

Abstract

The potential of applying thermodynamics to study the tribological response of a tribological system is addressed in this article. In order to do so, a model was developed to obtain the entropy flow generated by three different dissipative processes present in dry sliding, namely thermal gradient, heat conduction and abrasion. The flash and bulk temperatures at the contact interface were obtained with the aid of the finite element method and Pin-on-Disk tests were performed by using titanium alloy (Ti6Al4V) disks and Tungsten Carbide (WC/10Co) pins. Then, the wear rate obtained from the tribological tests was correlated with the calculated entropy flow and a degradation coefficient was associated to the sliding process. A linear dependence of the wear rate and the degradation coefficient was observed regardless of the variation of the points of operation of the system, so it is proposed that the coefficient of degradation used is inherent to the tribological system.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In