Tribological Behavior of CoCr28Mo/CoCr28Mo Pair in the Presence of Bio-lubrication
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The tribological behavior of the CoCr28Mo/CoCr28Mo pair was studied using pin-on-disc tribometer. Four bio-lubricants were retained including pure sesame oil, nigella oil, physiological solution (0.9% NaCl) and Hyalgan®. Hyalgan® is a sodium hyaluronate (20 mg/2 mL) pharmaceutical intra-articular injection used, in this study, as a reference. The Coefficient of Friction (CoF) and wear rate (K) of CoCr28Mo were computed after tribological tests. The tribological efficiency of vegetable oils with regard to their chemical composition and structure was compared to Hyalgan. It is found that, the use of vegetable oils enhanced significantly the tribological behavior of CoCr28Mo/CoCr28Mo pair. The obtained results were correlated to the chemical structure of vegetable oils namely the Unsaturations Number (UN) of fatty acids constituting the oil. Microscopic and chemical characterization of CoCr28Mo pins and discs were conducted and the wear mechanism was discussed.
KeywordsCoCr alloy friction coefficient wear resistance oil lubrication
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Authors are grateful to the Monastir University and to the Ministry of Higher Education and Scientific Research- Tunisia for their support (LGM: LAB-MA-05). We would like to thank Mr. Didier VOILLEMIN the manager of C2T Implants Company for his great collaboration. We offer special thanks to Mlle. Sarah BAIZ from PIMM Laboratory of ENSAM-ParisTech (France) for her help carrying out SEM images.
- Amstutz H C, Campbell P, Kossovsky N, Clarke I C. Mechanism and clinical significance of wear debris-induced osteolysis. Clinical Orthopaedics, 1992, 276, 7–18.Google Scholar
- Delaunay C, Petit I, Learmonth I D, Oger P, Vendittoli P A. Metal-on-metal bearings total hip arthroplasty: The cobalt and chromium ions release concern. Orthopaedics & Traumatology: Surgery & Research, 2010, 96, 894–904.Google Scholar
- Kobayashi M, Koide T, Hyon S-H. Tribological characteristics of polyethylene glycol (PEG) as a lubricant for wear resistance of ultra-high-molecular-weight polyethylene (UHMWPE) in artificial knee join. Journal of the Mechanical Behavior of Biomedical Materials, 2014, 38, 33–38.CrossRefGoogle Scholar
- Torres-Guzman A M, Morado-Urbina C E, Alvarado- Vazquez P A, Acosta-Gonzalez R I, Chávez-Piña A E, Montiel-Ruiz R M, Jimenez-Andrade J M. Chronic oral or intraarticular administration of docosahexaenoic acid reduces nociception and knee edema and improves functional outcomes in a mouse model of Complete Freund’s Adjuvant–induced knee arthritis. Arthritis Research & Therapy, 2014, 16, R64.CrossRefGoogle Scholar
- Pound B G. Passive films on metallic biomaterials under simulated physiological conditions. Journal of Biomedical Materials Research Part A, 2013, 102A, 1595–1604.Google Scholar
- Cherniakova Yu M, Pinchuk L S. Tribological aspects of joint intraaricular therapy. Acta of Bioengineering and Biomechanics, 2011, 13, 57–63.Google Scholar
- Sieber H P, Rieker C B, Kottig P J. Analysis of 118 secondgeneration metal-on-metal retrieved hip implants. Journal of Bone and Joint Surgery, 1999, 8, 46–50.Google Scholar
- Loehlé S, Matta C, Minfray C, Mogne T L, Iovine R, Obara Y, Miura R, Miyamoto A. Mixed lubrication of steel by C18 fatty acids revisited. Part I: Toward the formation of carboxylate. Tribology International, 2015, 82, 218–227.Google Scholar
- Hui L, Weiyu F, Yang L, Pinhui Z, Guozhi N. Effects of fatty acids on low-sulfur diesel lubricity: Experimental investigation, DFT calculation and MD simulation. China Petroleum Processing and Petrochemical Technology, 2013, 15, 74–81.Google Scholar