Effects of laser shock peening on the corrosion behavior and biocompatibility of a nickel–titanium alloy

Zhang, Ruixia; Mankoci, Steven; Walters, Nicholas; Gao, Hongyu; Zhang, Hao; Hou, Xiaoning; Qin, Haifeng; Ren, Zhencheng; Zhou, Xianfeng; Doll, Gary L.; Martini, Ashlie; Sahai, Nita; Dong, Yalin; Ye, Chang

doi:10.1002/jbm.b.34278

Cited by 17 publications

(7 citation statements)

References 55 publications

(66 reference statements)

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“…This shows that there was a tendency to reduce the corrosion rate in all the laser peened samples in comparison to the unpeened Cu, whereas the highest performance in corrosion rate reduction was found at LSPVC 50 %. The results not only confirm that the LSP modification is optimum at LSPVC 50 % but also showed that the LSP process is an effective method for Cu corrosion mitigation [7,9,19,51].…”

Section: Iu Corr − Ip Corrsupporting

confidence: 56%

“…In another development, the corrosion resistance of a biodegradable metallic implant (magnesium-calcium alloys) treated by LSP showed an increase in corrosion resistance by more than a 100-fold in simulated body fluid electrolyte as reported by Guo et al [18]. Similarly, Zhang et al [19] reported a wide positive shift in the corrosion potential of nickel-titanium alloy from − 440 mV to − 80 mV (a difference of − 360 mV) and reduction in corrosion current density from 1.41 to 0.67 μA cm − 2 for the untreated and the LSP treated surfaces respectively, tested in a simulated body fluid. This result by Zhang group was accompanied by an increase in hardness value from 226 to 261 HV due to the LSP treatment.…”

Section: Microstructural Characterizationmentioning

confidence: 67%

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Laser shock peening (LSP): Electrochemical and hydrodynamic investigation of corrosion protection pre-treatment for a copper surface in 3.5 % NaCl medium

et al. 2021

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Besides electrochemical corrosion protection, laser shock peening provides extended fatigue life and mechanical properties for metals, as reported in the literature. However, most of the studies were performed under static conditions. The effectiveness of this method under flow conditions and prolonged immersion duration is addressed in this study. Copper discs were peened with Nd: YAG laser in the presence of ~2 mm thickness of water and polyvinyl chloride to absorb the intensity and provide residual stress without surface damage. Electrochemical and hydrodynamic analyses indicate that the peened surface showed higher corrosion resistance in 3.5 % NaCl compared to the unpeened.

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Section: Iu Corr − Ip Corrsupporting

confidence: 56%

Section: Microstructural Characterizationmentioning

confidence: 67%

Laser shock peening (LSP): Electrochemical and hydrodynamic investigation of corrosion protection pre-treatment for a copper surface in 3.5 % NaCl medium

et al. 2021

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“…Sci. 2021, 11, 515 2 of 10 laser shock peening can increase the surface microhardness and enhance the mechanical property (such as wear-resistance) of NiTi alloy [13]. In our previous research, we also got similar results when the metals, such as aluminum, high strength, and NiTi alloy, were processed with laser shock peening [14][15][16].…”

Section: Introductionmentioning

confidence: 67%

The Effect of Laser Nitriding on Surface Characteristics and Wear Resistance of NiTi Alloy with Low Power Fiber Laser

et al. 2021

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The laser nitriding was performed in nitrogen gas at room temperature (20 °C) and low temperature (−190 °C) by a low power fiber laser to modify the wear and abrasion resistance of NiTi alloy. The surface roughness and element composition were analyzed by roughness device and energy-dispersive X-ray spectroscopy respectively. The results of roughness show that laser treatment can change the surface roughness due to the laser remelting. The effect of laser nitriding on the microhardness, friction coefficient, and worn scars of NiTi alloy was also studied, which shows that the microhardness of the NiTi alloy increases after laser nitriding. The optical microscope and scanning electron microscope were used to characterize the surface of NiTi alloy after wear testing to observe the microstructure of worn scars. The results show that the laser nitriding with different parameters can induce a nitride layer with different thicknesses and the higher energy deposition is the key factor for the formation of the nitride layer, which can decrease the friction coefficient and reduce wear loss during the application of NiTi alloy. The improvement of wear resistance can be attributed to the hard nitriding layer.

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“…Values of each material are given in Table 3. [66][67][68][69][70][71][72] For both anodic and cathodic behavior of a corroding material, electron transfer which is leading to electric current is directly associated in a corrosion process. Therefore, corrosion speed and rate depend on the releasing electron number and current flow between anodic and cathodic regions in a structure.…”

Section: Electrochemical Parameter Modeling For the Corrosion And Isr...mentioning

confidence: 99%

Computer‐Aided Analysis of the Corrosion Inhibition by Carbon‐Based Thin‐Film Coating on Vascular Bare Metal Stent Models

Akdoğan

Istanbullu

2022

Advcd Theory and Sims

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A simulation study of inhibiting the corrosion and corrosion-based restenosis is presented by diamond-like carbon (DLC) thin-film coating on bare-metallic intravascular stent models. The stents are designed and placed in a blood vessel model including a fatty-plaque layer in the study. 316L-stainless steel, CoCr-alloy, and nitinol are assigned to the stent models considering stent manufacturing. Modeled stents are coated with a carbon-based structure that mimics the DLC thin film. The electrochemical simulations are performed under the dynamic non-Newtonian blood flow condition for a 1 year period. Electrolytic current densities, corrosion, and restenosis rates of the bare and coated stents are simulated using time-dependent laminar flow and corrosion modules in multiphysics analysis software. Among the bare-stent models, the highest corrosion rate is observed for 316L with 79 µm year −1 and the minimum corrosion rate is observed for nitinol with 9 µm year −1 . Restenosis rates increase up to 36 µm year −1 due to the charged-particle adhesion on the bare stent surfaces. However, DLC-thin-film coating reduces corrosion and in-stent restenosis (ISR) rates down to 0.94 and 0.2 µm year −1 respectively. It can be concluded that surface passivation by thin-film DLC coating may be considered a promising candidate for novel stent designs having lower corrosion-based issues and ISR risks.

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Effects of laser shock peening on the corrosion behavior and biocompatibility of a nickel–titanium alloy

Cited by 17 publications

References 55 publications

Laser shock peening (LSP): Electrochemical and hydrodynamic investigation of corrosion protection pre-treatment for a copper surface in 3.5 % NaCl medium

Laser shock peening (LSP): Electrochemical and hydrodynamic investigation of corrosion protection pre-treatment for a copper surface in 3.5 % NaCl medium

The Effect of Laser Nitriding on Surface Characteristics and Wear Resistance of NiTi Alloy with Low Power Fiber Laser

Computer‐Aided Analysis of the Corrosion Inhibition by Carbon‐Based Thin‐Film Coating on Vascular Bare Metal Stent Models

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