Fretting corrosion of CoCrMo and Ti6Al4V interfaces

Swaminathan, Viswanathan; Gilbert, Jeremy L.

doi:10.1016/j.biomaterials.2012.04.015

Cited by 201 publications

(156 citation statements)

References 27 publications

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“…Other factors play a role in fretting corrosion, including the fretting regime (full slip versus partial slip or full stick) [32] and the applied [18] and assembly loads [31] to which the junctions are subjected. Microstructure can affect corrosion behavior and can be modified through thermomechanical treatments.…”

Section: Discussionmentioning

confidence: 99%

Otto Aufranc Award: Large Heads Do Not Increase Damage at the Head-neck Taper of Metal-on-polyethylene Total Hip Arthroplasties

Triantafyllopoulos

Elpers

Burket

et al. 2016

Clinical Orthopaedics &Amp; Related Research

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Background Fretting and corrosion at head-neck junctions of total hip arthroplasties (THAs) have been associated with adverse local tissue reactions in patients with both metal-onpolyethylene (MoP) and metal-on-metal (MoM) prostheses. Femoral head size contributes to the severity of fretting and corrosion in large-diameter MoM THAs, but its impact on such damage in MoP THAs remains unknown. Questions/purposes (1) Is femoral head size associated with increased fretting or corrosion at the head-neck junction in MoP total hips? (2) Is duration of implantation associated with increased fretting or corrosion? Methods The severity of fretting/corrosion on surfaces of head tapers and stem trunnions was visually examined in 154 MoP THAs retrieved as part of 3282 revision surgeries performed at our institution between January 1, 2007, and December 31, 2013. Fretting and corrosion damage were subjectively graded by two independent observers on a 1 to 4 scale, and their relations to head size, alloy combinations, taper/trunnion design, length of implantation (LOI), and location were investigated. Differences in scores never exceeded one grade, and this occurred in only 17% of examined implants. With the available implants, the study provided 88% power to detect differences of 0.5 in fretting or corrosion scores in these analyses. Results Fretting and corrosion of the tapers and the trunnions were not affected by head size (p = 0.247, p = 0.471, p = 0.837, and p = 0.868, respectively), although taper/trunnion design affected taper fretting (p = 0.005) and corrosion (p = 0.0031) and trunnion fretting (p = 0.0028). Head taper fretting (observed in 73% of heads) increased with LOI, but head taper corrosion (noted in 93% of heads) was not affected. Trunnion fretting (observed in 86% of stems) was more severe in mixed-alloy combinations and with increased LOI and was more severe proximally. Trunnion corrosion (noted in 72% of stems) was also location-dependent with greater corrosion distally. Conclusions Fretting and corrosion are regular occurrences in MoP THAs, but neither damage type was related to femoral head size. Conversely, taper design, LOI, and alloy combination affected the severity of both fretting and corrosion.

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Section: Discussionmentioning

confidence: 99%

Otto Aufranc Award: Large Heads Do Not Increase Damage at the Head-neck Taper of Metal-on-polyethylene Total Hip Arthroplasties

Triantafyllopoulos

Elpers

Burket

et al. 2016

Clinical Orthopaedics &Amp; Related Research

View full text Add to dashboard Cite

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“…The passive film on the bearing surface can be damaged or removed by the sliding motion between the articulating surfaces, resulting in accelerated corrosion, which can in many cases lead to accelerated wear [7,8]. Many efforts have been made in the past decade to investigate the tribocorrosion behavior CoCrMo alloys in laboratory and simulator tests [4][5][6][9][10][11][12]. An excellent review in this area has recently been provided by Mischler and Munoz [13].…”

Section: Introductionmentioning

confidence: 99%

Tribocorrosion Behavior of Duplex S/Cr(N) and S/Cr(C) Coatings on CoCrMo Alloy in 0.89 % NaCl Solution

Sun

Dearnley

2014

J Bio Tribo Corros

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In the present study, magnetron sputtering was used to deposit two types of duplex coatings, S/Cr(N) and S/Cr(C), onto ASTM F75 CoCrMo cast alloy, aiming at improving the tribocorrosion behavior of the medical alloy. The duplex coatings were fabricated and structured such that the inner layer comprised carbon S phase with a CoCrMo matrix by sputtering a CoCrMo alloy target in the presence of carbon containing atmosphere. The duplex coatings were found to be elastically compatible with the CoCrMo alloy, and possess higher hardness and a larger hardness-to-modulus ratio than the uncoated alloy. Tribocorrosion tests were conducted in 0.89 % NaCl solution at 37°C under elastic contact and unidirectional sliding conditions. The results showed that the duplex S/Cr(N) coating was very effective in improving the tribocorrosion behavior of the alloy at all applied potentials, in terms of reduced friction and much improved resistance to total material loss (TML) by up to more than one order of magnitude. On the other hand, the duplex S/Cr(C) coating was effective only at open circuit and anodic potentials (APs), but not at cathodic potentials. The uncoated alloy exhibited low friction and low TML at a large cathodic potential and experienced peculiar frictional behavior at the tested AP. The results are discussed in terms of material transfer, hydrogen charging, third body effects, and synergism between wear and corrosion.

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“…A sheet of type 316L stainless steel was cut into samples for the tensile test, with a gauge size of 8 © 4 © 1 mm 3 . The samples were mirror-finished, then degreased by sonicating for 600 s in acetone, methanol, and distilled water.…”

Section: Methodsmentioning

confidence: 99%

Electrochemical Behavior of Type 316L Stainless Steel during Cyclic Deformation under Cell Culturing

2014

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Dissolution and repassivation of type 316L stainless steel during cyclic deformation were examined in a simulated body environment. Samples were exposed to simulated body fluid (SBF) with or without cells, and then subjected to cyclical deformation in the SBF kept at cell culturing condition. The cyclic stress ratio and maximum stress were 0.1 and 300 MPa, respectively. Transients of stress, strain and corrosion potential were recorded during the test.The corrosion potential became less noble immediately after the start of the test, but started to increase again after about 10³1000 cycles. The minimum corrosion potential depends on the treatment prior to the deformation: the lowest value was observed for the specimen previously immersed in SBF for 1 day without cells, whereas the highest one was shown by the specimen immersed for 1 week in the presence of cultured cells. This reveals that proteins and cells inhibit metal dissolution during deformation. On the other hand, the time needed for the potential revert to noble was the longest for the sample containing cells, and shortest for the cell-free sample immersed for 1 day. This denotes that proteins and cells also suppress repassivation.

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Fretting corrosion of CoCrMo and Ti6Al4V interfaces

Cited by 201 publications

References 27 publications

Otto Aufranc Award: Large Heads Do Not Increase Damage at the Head-neck Taper of Metal-on-polyethylene Total Hip Arthroplasties

Otto Aufranc Award: Large Heads Do Not Increase Damage at the Head-neck Taper of Metal-on-polyethylene Total Hip Arthroplasties

Tribocorrosion Behavior of Duplex S/Cr(N) and S/Cr(C) Coatings on CoCrMo Alloy in 0.89 % NaCl Solution

Electrochemical Behavior of Type 316L Stainless Steel during Cyclic Deformation under Cell Culturing

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