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2015•Advances in Materials and Processing TechnologiesRequires access

Investigation of the water lubricated tribological behavior of medical grade UHMWPE

A. Mimaroğlu, H. Unal

Open publisher page 7 citations

Abstract

In this study, ultrahigh molecular weight polyethylene (UHMWPE) polymer was studied for boundary lubricated friction and wear behaviour under distilled water lubricated conditions. Sliding wear tests were carried out using pin-on-disc apparatus. UHMWPE polymer in the form of the pin was tested against AISI 304L stainless steel disc. Wear tests were performed at room temperature under 50, 100 and 150 N applied loads and at 0.5 and 2.0 m/s sliding speeds. The obtained results show that the coefficient of friction for UHMWPE polymer is significantly influenced by the increase in applied load and sliding speed values. Finally, the average specific wear rate values for UHMWPE polymer under water lubricated condition is in the order of 1.4 × 10−14 m2/N.

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What this paper is about

In this study, ultrahigh molecular weight polyethylene (UHMWPE) polymer was studied for boundary lubricated friction and wear behaviour under distilled water lubricated conditions. Sliding wear tests were carried out using pin-on-disc apparatus. UHMWPE polymer in the form of the pin was tested against AISI 304L stainless steel disc. Wear tests were performed at room temperature under 50, 100 and 150 N applied loads and at 0.5 and 2.0 m/s sliding speeds. The obtained results show that the coefficient of friction for UHMWPE polymer is significantly influenced by the increase in applied load and sliding speed values. Finally, the average specific wear rate values for UHMWPE polymer under water lubricated condition is in the order of 1.4 × 10−14 m2/N.

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Available abstract

In this study, ultrahigh molecular weight polyethylene (UHMWPE) polymer was studied for boundary lubricated friction and wear behaviour under distilled water lubricated conditions. Sliding wear tests were carried out using pin-on-disc apparatus. UHMWPE polymer in the form of the pin was tested against AISI 304L stainless steel disc. Wear tests were performed at room temperature under 50, 100 and 150 N applied loads and at 0.5 and 2.0 m/s sliding speeds. The obtained results show that the coefficient of friction for UHMWPE polymer is significantly influenced by the increase in applied load and sliding speed values. Finally, the average specific wear rate values for UHMWPE polymer under water lubricated condition is in the order of 1.4 × 10−14 m2/N.

Key concepts: Materials science, Tribology, Composite material, Friction coefficient, Polyethylene, Distilled water, Polymer, Ultra-high-molecular-weight polyethylene

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