Sliding wear behaviour of ion implanted ultra high molecular weight polyethylene against a surface modified titanium alloy Ti-6Al-4V

Allen, C.; Bloyce, A.; Bell, Thomas A.

doi:10.1016/0301-679x(95)00116-l

Cited by 55 publications

(28 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [19], the wear behavior of polyethylene sliding against metal discs (Ti-6A1-4V al loy with various surface treatment, AISI 316 L stainless steel and Vitallium) were investigated using an annulus-on-disc oscillating tribometer. However, in another sliding wear tests, it has shown in [20] that no polymer transfer layers were observed on the metallic interface and the adhesion between polyethylene and titanium alloy surface is weak. For hip joint combina tions of metal and polymer, it seems that the abrasive wear has the dominance in wear behavior when the hard debris produced from the metallic asperities are served as the third-body particles and entrapped be tween articulating surface.…”

Section: Wear Mechanism In Artificial Prosthesismentioning

confidence: 97%

A Comparative Study on Wear Behavior of Hip Prosthesis by Finite Element Simulation

Hung

2002

Biomed. Eng. Appl. Basis Commun.

View full text Add to dashboard Cite

A numerical approach was proposed to investigate the wear behavior occurred in the artificial hip joints in this paper. In the numerical simulations, the wear coefficients taken from pin-on-disk tests were introduced into the wear analysis model to assess the wear rates of polyethylene acetabular cups against metallic or ceramic femoral heads. For the established material combinations, different values of polyethylene wear rates were obtained respectively, which were not necessarily the realistic one as expected in vivo but could be confirmed after further discussion on the wear mechanism involved in wear tests. Current results indicated that the polyethylene/ceramic couples represented better wear performances than the polyethylene/metal couples. Furthermore, the ratio of wear rates for polyethylene cups against alumina and the metallic femoral heads was 0.5, which agreed well with that deduced from clinical studies or laboratory hip simulators. It is obvious that these comparable wear behaviors observed from clinics or laboratory studies also can be found by means of the numerical simulation.

show abstract

Section: Wear Mechanism In Artificial Prosthesismentioning

confidence: 97%

A Comparative Study on Wear Behavior of Hip Prosthesis by Finite Element Simulation

Hung

2002

Biomed. Eng. Appl. Basis Commun.

View full text Add to dashboard Cite

show abstract

“…The high-energy ionised atoms bombard the surface and penetrate into the surface to produce a hard and stiff layer in the near surface region of the target material. Ion implantation has been carried out successfully on many polymers and generally improves the surface related properties including hardness and wear resistance for a range of polymers [13]. Nevertheless, industrial applications of ion implantation are restricted since it is difficult to uniformly treat three-dimensional products with the beam line ion implantation technology.…”

Section: Discussionmentioning

confidence: 99%

Potential of plasma nitriding of polymer for improved hardness and wear resistance

Bell

2005

Journal of Materials Processing Technology

Self Cite

View full text Add to dashboard Cite

“…Changes have been made to reduce wear of titanium alloy heads by modifying the surface [12,13] so that it would not be necessary to utilize cobalt heads on titanium alloy femoral stems. It has been suggested that the nature of the femoral head might affect the wear of the polyethylene so a change to ceramic heads [15][16][17][18][19][20][21][22][23][24] was tested and has been instituted in many marketed devices.…”

Section: Open Accessmentioning

confidence: 99%

“…After the discovery of high rates of wear of some polyethylene components in some patients, efforts began to try to improve the wear rates through design changes, polymer modification [7][8][9][10][11], or materials substitution [12][13][14]. Changes included the use of ceramic femoral head components to reduce wear, modification of the processing, packaging, and sterilization parameters of the acetabular cups, varying the molecular weight of the polyethylene or changing the additives, and modification of the polyethylene material itself.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Two Total Hip Bearing Materials for Resistance to Wear Using a Hip Simulator

John

2015

Lubricants

View full text Add to dashboard Cite

Electron beam crosslinked ultra high molecular weight polyethylene (UHMWPE) 32 mm cups with cobalt alloy femoral heads were compared with gamma-irradiation sterilized 26 mm cups and zirconia ceramic heads in a hip wear simulator. The testing was performed for a total of ten million cycles with frequent stops for cleaning and measurement of mass losses due to wear. The results showed that the ceramic on UHMWPE bearing design exhibited higher early wear than the metal on highly crosslinked samples. Once a steady state wear rate was reached, the wear rates of the two types of hip bearing systems were similar with the ceramic on UHMPWE samples continuing to show a slightly higher rate of wear than the highly crosslinked samples. The wear rates of each of the tested systems appear to be consistent with the expectations for low rates of wear in improved hip replacement systems.

show abstract

Sliding wear behaviour of ion implanted ultra high molecular weight polyethylene against a surface modified titanium alloy Ti-6Al-4V

Cited by 55 publications

References 17 publications

A Comparative Study on Wear Behavior of Hip Prosthesis by Finite Element Simulation

A Comparative Study on Wear Behavior of Hip Prosthesis by Finite Element Simulation

Potential of plasma nitriding of polymer for improved hardness and wear resistance

Evaluation of Two Total Hip Bearing Materials for Resistance to Wear Using a Hip Simulator

Contact Info

Product

Resources

About