Stress-enhanced ion release — the effect of static loading

Bundy, K.J.; Williams, Clifford J.; Luedemann, R.

doi:10.1016/0142-9612(91)90108-m

Cited by 53 publications

(28 citation statements)

References 12 publications

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“…Experiments on mechanical loading of NiTiSMAs are necessary because of the high nickel content ($50 at.%) of this biomaterial. It is well known that there are concerns about metallic alloys containing Ni, even in the case of standard implant materials like the austenitic steel 316 L [7]. It is important to prove that the Ni content of a metallic alloy is not harmful before it can be used as an implant.…”

Section: Discussionmentioning

confidence: 99%

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Can human mesenchymal stem cells survive on a NiTi implant material subjected to cyclic loading?

et al. 2011

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Section: Discussionmentioning

confidence: 99%

“…However, orthopedic implants are frequently exposed to loading/unloading conditions, being deformed in an elastic manner [7], while biocompatibility studies are mostly performed under static conditions. The genotoxic and mutagenic potential of nickel compounds has been shown by several studies [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Can human mesenchymal stem cells survive on a NiTi implant material subjected to cyclic loading?

et al. 2011

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“…The corrosion of these two alloys increased more than 10 times under applied loads when compared to unstressed equivalents [42].…”

Section: Mechanical Stressmentioning

confidence: 95%

“…In case of Mg based biomaterials, the flow may produce fluid shear stress, which could help the deposition of corrosion product layer or, on the other hand, remove the locally generated OH -ions, thus affecting the corrosion behaviour [42,43]. corrosion rate of AM60B alloy in the static Hanks' solution, whereas higher shear stress (8.8 Pa) enhance the rate [151].…”

Section: Mechanical Stressmentioning

confidence: 99%

Biodegradable magnesium alloys for orthopaedic applications: A review on corrosion, biocompatibility and surface modifications

Agarwal

Curtin²,

Duffy

et al. 2016

Materials Science and Engineering: C

777

363

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Magnesium (Mg) and its alloys have been extensively explored as potential biodegradable implant materials for orthopaedic applications (e.g. Fracture fixation). However, the rapid corrosion of Mg based alloys in physiological conditions has delayed their introduction for therapeutic applications to date. The present review focuses on corrosion, biocompatibility and surface modifications of biodegradable Mg alloys for orthopaedic applications. Initially, the corrosion behaviour of Mg alloys and the effect of alloying elements on corrosion and biocompatibility is discussed. Furthermore, the influence of polymeric deposit coatings, namely sol-gel, synthetic aliphatic polyesters and natural polymers on corrosion and biological performance of Mg and its alloy for orthopaedic applications are presented. It was found that inclusion of alloying elements such as Al, Mn, Ca, Zn and rare earth elements provides improved corrosion resistance to Mg alloys. It has been also observed that sol-gel and synthetic aliphatic polyesters based coatings exhibit improved corrosion resistance as compared to natural polymers, which has higher biocompatibility due to their biomimetic nature. It is concluded that, surface modification is a promising approach to improve the performance of Mg-based biomaterials for orthopaedic applications.

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“…Fretting corrosion response of modular implants has been generally quantified through electrochemical measurements or measurement of weight loss during fretting testing [3,[10][11][12][13][14][15][16]. Results of the fretting corrosion studies indicate that there is a synergistic interaction of mechanical loading and electrochemical oxidation i.e., material degradation is accelerated by the combined effects of fretting and corrosion.…”

Section: Introductionmentioning

confidence: 99%

Onset of Surface Damage in Modular Orthopedic Implants: Influence of Normal Contact Loading and Stress-assisted Dissolution

2007

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Surface damage at interfaces of modular implants results from repeated fretting contacts between metallic surfaces in a corrosive environment. As a first step in understanding this complex process, multi-asperity contact experiments were conducted to characterize roughness evolution due to action of contact loads and exposure to a reactive environment. Cobalt-chromium specimens with surface roughness similar to modular implant were first subjected to only contact loading and subsequently, to alternating contact loads and exposure to reactive environment. During repeated normal contact loading, amplitude of surface roughness reached a steady value after decreasing during the first few cycles. However during the second phase surface roughness amplitude continuously evolveddecreasing during contact loading and increasing on exposure to corrosive environment. The increase in roughness amplitude during surface reaction depended on the magnitude of applied contact loads. A damage mechanism that incorporates contact-induced residual stress development and stress-assisted dissolution is proposed to elucidate the measured surface roughness evolution.

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Stress-enhanced ion release — the effect of static loading

Cited by 53 publications

References 12 publications

Can human mesenchymal stem cells survive on a NiTi implant material subjected to cyclic loading?

Can human mesenchymal stem cells survive on a NiTi implant material subjected to cyclic loading?

Biodegradable magnesium alloys for orthopaedic applications: A review on corrosion, biocompatibility and surface modifications

Onset of Surface Damage in Modular Orthopedic Implants: Influence of Normal Contact Loading and Stress-assisted Dissolution

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