Mechanical and tribological performance of UHMWPE influenced by temperature change

Water-lubricated surface bearing components experience boundary and mixed lubrication during operation. The lack of lubrication induces temperature increase, affecting the properties of the component. Ultra-high molecular weight polyethylene (UHMWPE) is commonly used for these applications and the i...

Full description

Saved in:
Bibliographic Details
Published in:Polymer testing 2017-09, Vol.62, p.102-109
Main Authors: Baena, Juan-Carlos, Peng, Zhongxiao
Format: Article
Language:English
Subjects:
Hardness
Lubrication
Molecular weight
Plastic deformation
Polyethylene
Surface bearing
Tribological system
Tribology
UHMWPE
Ultra high molecular weight polyethylene
Wear
Wear rate
Wear resistance
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Water-lubricated surface bearing components experience boundary and mixed lubrication during operation. The lack of lubrication induces temperature increase, affecting the properties of the component. Ultra-high molecular weight polyethylene (UHMWPE) is commonly used for these applications and the influence of the temperature on the mechanical and tribological performance has not been clearly identified. This study evaluates the wear resistance and hardness of UHMWPE with the temperature increase in a range of 20 °C–60 °C. An important reduction of hardness and wear resistance was observed in this interval. The wear rate increased 94.8% when the temperature changed from 20 °C to 50 °C. The wear resistance decreased more rapidly than the hardness when the temperature was increased. The correlation between hardness and wear rate is less consistent when the hardness value was below 4.12 (Hv0.3), reported at 40 °C. Plastic deformation and adhesion were highly enhanced with temperature.
ISSN:0142-9418
1873-2348
DOI:10.1016/j.polymertesting.2017.06.017