Tribological behavior of Ti6Al4 V alloy swing against UHMWPE under different lubrication

2019 ◽  
pp. 089270571988118
Author(s):  
Xinyue Zhang ◽  
Kai Chen ◽  
Linmin Xu ◽  
Jianwei Qi ◽  
Yong Luo ◽  
...  
Keyword(s):  
Wear Mechanism ◽  
Dry Friction ◽  
Friction Pair ◽  
Ultrahigh Molecular Weight Polyethylene ◽  
Ultrahigh Molecular Weight ◽  
Different Depths ◽  
Fetal Bovine ◽  
Oxidation Wear ◽  
Lubrication Conditions ◽  
Friction And Wear Tests

Friction and wear tests were performed in this study between the Ti6Al4 V socket and ultrahigh molecular weight polyethylene (UHMWPE) ball on swinging friction tester to clarify the wear mechanism of Ti6Al4V/UHMWPE friction pair under different conditions, including dry condition, simulated body fluid (SBF), and fetal bovine serum (FBS). Results showed that there are many scratches in different depths on the edge of the Ti6Al4 V socket, which reveals the characteristic of swinging friction, and the wear severity of the scratches was the worst under dry friction. What is more, the wear mechanism models under different lubrication conditions have been established. The wear mechanism of Ti6Al4 V alloy is mainly a combination of abrasive and oxidation wear, whereas the wear mechanism of UHMWPE is a combination of adhesive and abrasive wear. Compared with the dry friction condition, the friction coefficient and wear rate decreased under SBF and FBS lubrication conditions, and the wear mechanisms presented primarily adhesive wear combined with minimal oxidation wear. Among the three conditions, the effects of reducing friction and improving lubrication showed the following tendency: FBS > SBF > dry condition.

scholarly journals Experimental investigation on tribological properties of UHMWPE with the addition of basalt fiber

2019 ◽  
Vol 28 ◽  
pp. 2633366X1989459 ◽  
Author(s):  
Yi Han ◽  
Jihong Chen
Keyword(s):  
Friction Coefficient ◽  
Tribological Properties ◽  
Basalt Fiber ◽  
Ultrahigh Molecular Weight Polyethylene ◽  
Comparative Investigation ◽  
Wear Depth ◽  
Ultrahigh Molecular Weight ◽  
Uhmwpe Composites ◽  
Wear Tests ◽  
Friction And Wear Tests

To seek the effective and feasible way to enhance the tribological properties of ultrahigh-molecular-weight polyethylene (UHMWPE) materials, a comparative investigation on the tribological behavior of basalt fiber (BF) as filler in UHMWPE composites was carried out. BF/UHMWPE composites were investigated through friction and wear tests to evaluate its frictional and lubricate properties. The results showed that the friction coefficient of the UHMWPE composite decreased significantly under water sliding condition; under water and dry friction conditions, the friction coefficient decreases with the increase in load and rises as the rotational speed growing. When the BF/UHMWPE composites were tested under water-lubricated conditions, the material folding and pieces of debris were reduced obviously and the variation of wear depth was consistent with the results of friction coefficient. To evaluate the tribological properties of UHMWPE under various conditions, the research results make useful reference for UHMWPE manufacture and other relative experiments.

Measurement of roller chain wear lubricated with palm oil-based hexagonal boron nitride nanoparticles

2020 ◽  
Vol 72 (10) ◽  
pp. 1199-1204
Author(s):  
Hilmi Amiruddin ◽  
Mohd Fadzli Bin Abdollah ◽  
Muhamad Aliff Danial Mohamad Nizar
Keyword(s):  
Boron Nitride ◽  
Palm Oil ◽  
Wear Mechanism ◽  
Hexagonal Boron Nitride ◽  
Wear Performance ◽  
Content Type ◽  
Roller Chain ◽  
Resistance Torque ◽  
Torque Values ◽  
Lubrication Conditions

Purpose This study aims to introduce a novel technique which helped in quantifying the wear performance of a roller chain which was lubricated by using the palm oil-based hexagonal boron nitride (hBN) nanoparticles (nano-biolubricant). Design/methodology/approach The efficiency of the nano-biolubricant was evaluated by using a custom-made roller chain tribometer, at different resistance torque values at a constant speed and running time. Prior to the test, 2 different lubrication conditions were applied. The mass loss and elongation behaviour of a roller chain was selected as a degradation metric for monitoring the amount of the chain wear. The predominant wear mechanism of a roller chain was identified by surface morphological analysis. Findings Regardless of the lubrication conditions, the wear performance of the roller chain was significantly increased, at increasing resistance torque values. Higher wear was noted when the roller chain was lubricated using a nano-biolubricant, however, the wear curve showed a promising high chain life. The predominant wear mechanism involved is abrasive wear. Originality/value Although an increase in the elongation during running is based on the wear between the pins and roller, none of the earlier studies quantified the wear performance of a roller chain under differing lubrication conditions. Hence, for bridging the gap, this study described a new method for measuring the wear performance of the roller chain which was lubricated using the palm oil-based hBN nanoparticles or a nano-biolubricant. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2020-0061/

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