To read this content please select one of the options below:

Grease effect on fretting wear of mild steel

Antoni Neyman (Mechanical Engineering Faculty, Gdańsk University of Technology, Gdańsk, Poland)
Jan Sikora (Mechanical Engineering Faculty, Gdańsk University of Technology, Gdańsk, Poland)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 7 March 2008




The aim of this paper is to research grease and additives' influence on fretting wear of mild steel.


Experiments were performed on a laboratory stand with contact conditions cylinder on flat. The mild steel couples were tested under dry conditions and lubricated with mineral and synthetic greases containing as additives: graphite, molybdenum disulphide, ZDDP and molybdenum dithiocarbamate in different concentrations.


The results revealed a significant influence of grease consistency and its welding load on the fretting wear of steel couples. Graphite and molybdenum disulphide were effective in a 10 percent concentration. ZDDP additive in a more than 1 percent concentration increased fretting wear. Molybdenum dithiocarbamate was not more effective than molybdenum disulphide powder. Grease lubrication of the fretted couple changed significantly the wear mechanism observed on SEM photographs of fretting scars.

Practical implications

The paper presents some indications of proper selection of grease for fretting prevention.


The influence of the main features of grease on fretting wear was confirmed on the basis of extensive investigation.



Neyman, A. and Sikora, J. (2008), "Grease effect on fretting wear of mild steel", Industrial Lubrication and Tribology, Vol. 60 No. 2, pp. 67-78.



Emerald Group Publishing Limited

Copyright © 2008, Emerald Group Publishing Limited

Related articles