Improving the wear and corrosion resistance of CoCrMo-UHMWPE articulating surfaces in the presence of an electrolyte

Zai, Wei; Wong, M.H.; Man, Hau Chung

doi:10.1016/j.apsusc.2018.09.027

Cited by 25 publications

(11 citation statements)

References 44 publications

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“…In the case of hip implants, polymeric and metallic materials are supposed to be in friction to generate joint movement. [1][2][3] High Density Polyethylene (HDPE) is a viscoelastic polymer known for its easy manufacturing process namely: injection, extrusion and molding techniques, than UHMWPE (Ultra-High-Molecular-Weight Polyethylene). 4 Indeed, UHMWPE has a high viscosity at high temperature which makes it hard to be molded by injection and extrusion.…”

Section: Introductionmentioning

confidence: 99%

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Tribological properties of High Density Polyethylene based composite: The effect of mollusc shell particles under dry condition

Sidia

Bensalah

2020

Journal of Composite Materials

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This article highlights the importance of the addition of Mollusc shell (MS) particles, as bio-filler, on the tribological behavior of high-density polyethylene (HDPE) matrix. The elaborated biocomposites are intended to be used as an orthopedic replacement biomaterial. Different mass content of MS (0, 5, 10, 15 and 20 wt. %) have been added to the HDPE matrix. FTIR analysis, crystallinity rate and Rockwell hardness of different bio-composites were performed. A reciprocating pin-on-disc tribometer was used to fulfil dry wear tests. FTIR analysis showed that the presence of MS particles improved the crystallinity of the HDPE phase. Adding to that, it was found that MS improved the hardness, friction coefficient and wear resistance of the HDPE polymer. In fact, by adding 5 wt. % of MS to the HDPE, good tribological properties were achieved. Scanning Electron Microscopy (SEM) was performed to investigate the wear morphology of biocomposites under dry condition. SEM images showed that the morphology of the worn surfaces had been improved by the addition of MS to the polymer. Finally, a wear scenario was proposed.

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Section: Introductionmentioning

confidence: 99%

“…In the case of hip implants, polymeric and metallic materials are supposed to be in friction to generate joint movement. 1–3…”

Section: Introductionmentioning

confidence: 99%

Tribological properties of High Density Polyethylene based composite: The effect of mollusc shell particles under dry condition

Sidia

Bensalah

2020

Journal of Composite Materials

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“…The diffraction pattern is consistent with prior published work [ 40 , 41 ], identifying the majority of the material as a face centered cubic (FCC) γ-(Co, Cr, Mo) crystallographic structure indicated by peaks at 2θ equal to 44.1°, 51.0°, and 75.1°, as labeled in Figure 5 . Lesser peaks at 41.3° and 47.1° indicate a small amount of hexagonal close pack (HCP), ε-(Co, Cr, Mo), as labeled in Figure 5 [ 41 , 42 , 43 ].…”

Section: Resultsmentioning

confidence: 99%

Investigation of the effects of electrochemical reactions on complex metal tribocorrosion within the human body

Welles

Ahn

2021

Heliyon

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Although total hip arthroplasty (THA) is considered to be the most successful orthopedic operation in restoring mobility and relieving pain, common Metal-on-Metal (MoM) implants developed in the past decade suffer from severe inflammatory reactions of the surrounding tissue caused by the premature corrosion and degradation of the implant. A substantial amount of research has been dedicated to the investigation of mechanically driven fretting and crevice corrosion as the primary mechanism of implant failure. However, the exact mechanism by which hip implant breakdown occurs remains unknown, as current in vitro fretting and crevice corrosion studies have failed to completely replicate the corrosion characteristics of recovered implants. Here, we show that minor electric potential oscillations on a model hip implant replicate the corrosion of failed implants without the introduction of mechanical wear. We found in a controlled lab setting that small electrical oscillations, of similar frequency and magnitude as those resulting from ambient electromagnetic waves interacting with the metal of the implant, can force electrochemical reactions within a simulated synovial fluid environment that have not been previously predicted. In lab testing we have shown the replication of titanium, phosphorous, and oxygen deposition onto the surface of ASTM astm:F75 CoCrMo metal alloy test specimens, matching the chemical composition of previously retrieved wear particles from failed patient prosthetics. Our results demonstrate that the electrical activity and ensuing electrochemical activity excites two corrosion failure modes: direct dissolution of the medically implantable alloy, leaching metal ions into the body, and surface deposition growth, forming the precursor of secondary wear particles. We anticipate our findings to be the foundation for the future development and testing of electrochemically resistant implantable material.

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“…Ceramic components possess good wear resistance and chemical inertness, nevertheless, the fracture and the squeaking of ceramic joints have gained much attention. 3,4 Moreover, the high elastic modulus of ceramics can also be an issue, a consequent stress shielding effect may weaken the underlying bone and cause fracture. [5][6][7][8][9] Polyethylene has been the most widely used polymeric material since 1960 when Charnley rst utilized it as an acetabular liner.…”

Section: Introductionmentioning

confidence: 99%

Role of tribochemistry reactions of B₄C on tribofilm growth at a PEEK–steel interface in simulated body fluids

Liu

Zhao

et al. 2021

RSC Adv.

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Improving the wear and corrosion resistance of CoCrMo-UHMWPE articulating surfaces in the presence of an electrolyte

Cited by 25 publications

References 44 publications

Tribological properties of High Density Polyethylene based composite: The effect of mollusc shell particles under dry condition

Tribological properties of High Density Polyethylene based composite: The effect of mollusc shell particles under dry condition

Investigation of the effects of electrochemical reactions on complex metal tribocorrosion within the human body

Role of tribochemistry reactions of B₄C on tribofilm growth at a PEEK–steel interface in simulated body fluids

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Improving the wear and corrosion resistance of CoCrMo-UHMWPE articulating surfaces in the presence of an electrolyte

Cited by 25 publications

References 44 publications

Tribological properties of High Density Polyethylene based composite: The effect of mollusc shell particles under dry condition

Tribological properties of High Density Polyethylene based composite: The effect of mollusc shell particles under dry condition

Investigation of the effects of electrochemical reactions on complex metal tribocorrosion within the human body

Role of tribochemistry reactions of B4C on tribofilm growth at a PEEK–steel interface in simulated body fluids

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Role of tribochemistry reactions of B₄C on tribofilm growth at a PEEK–steel interface in simulated body fluids