Fatigue Analysis of Threaded Components with Cd and Zn-Ni Anticorrosive Coatings

Santos, Jefferson Rodrigo Marcelino dos; Fernandes, Martin Ferreira; Velloso, Verônica Mara de Oliveira; Voorwald, Herman Jacobus Cornelis

doi:10.3390/met11091455

Cited by 6 publications

(2 citation statements)

References 21 publications

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“…So, the coating with nanoparticles increases the strength and delays the crack initiation. Considering that the fatigue process starts with micro-cracks on the surface and eventually leads to failure, creating a coating delays the initiation and growth of cracks [28]. Since nanoparticles are smaller than micro-particles, they are more regularly and uniformly placed together, creating a strong layer on the sample that delays its failure.…”

Section: Fatigue Testmentioning

confidence: 99%

Study on wear, corrosion and fatigue properties of dual metallic bearings coated with nickel and aluminum particles

Esfahani,

Sadooghi,

Rahmani

et al. 2023

Phys. Scr.

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One of the solutions for improving the mechanical properties is coating them with particles, which is carried out by various methods. In this study, dual metallic copper/steel bearings were investigated so that, one of them was an uncoated (S0) and three coated samples, nickel micro-particles (S1), nickel/aluminum micro-particles (S2), and nickel/aluminum nano-particles (S3) were produced. The samples were subjected to mechanical tests including micro hardness, wear, and scratch, and then their corrosion rate and fatigue life were evaluated. The results showed that creating a nano-sized coating on the sample improved their properties compared to the micro-sized and uncoated samples. The highest micro hardness was obtained for sample S3, which was equal to 103.6 HV, 18% higher than sample S0. The lowest wear and corrosion rates were also obtained for sample S3, which were equal to 0.38 mg/m and 3.14 mm/year, respectively. Also, sample S3 had lowest delamination amount in the scratch test equal to 0.17 mm and most number of cycles until failure, 242 thousand cycles, in the fatigue test which was 76% more than the number of cycles spent on sample S0. Additionally, the microstructure of the corroded and worn surfaces of samples were examined by SEM imaging.

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Section: Fatigue Testmentioning

confidence: 99%

Study on wear, corrosion and fatigue properties of dual metallic bearings coated with nickel and aluminum particles

Esfahani,

Sadooghi,

Rahmani

et al. 2023

Phys. Scr.

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show abstract

“…Amongst the many biomaterials discovered to date, magnesium has been identified as this potential biomaterial, since it possesses mechanical properties close to human bone, in addition to being biodegradable [10]. In previous studies, researchers performed experimental fatigue tests for PLA [11], zinc [12], and ferrous materials [13]. However, examining the porous Mg bone scaffold's fatigue behavior when implanted in the bone is complicated and almost impossible with experimental testing.…”

Section: Introductionmentioning

confidence: 99%

Level of Activity Changes Increases the Fatigue Life of the Porous Magnesium Scaffold, as Observed in Dynamic Immersion Tests, over Time

et al. 2023

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In the present study, the effects of human physiological activity levels on the fatigue life of a porous magnesium scaffold have been investigated. First, the dynamic immersion and biomechanical testing are carried out on a porous magnesium scaffold to simulate the physiological conditions. Then, a numerical data analysis and computer simulations predict the implant failure values. A 3D CAD bone scaffold model was used to predict the implant fatigue, based on the micro-tomographic images. This study uses a simulation of solid mechanics and fatigue, based on daily physiological activities, which include walking, running, and climbing stairs, with strains reaching 1000–3500 µm/mm. The porous magnesium scaffold with a porosity of 41% was put through immersion tests for 24, 48, and 72 h in a typical simulated body fluid. Longer immersion times resulted in increased fatigue, with cycles of failure (Nf) observed to decrease from 4.508 × 1022 to 2.286 × 1011 (1.9 × 1011 fold decrease) after 72 hours of immersion with a loading rate of 1000 µm/mm. Activities played an essential role in the rate of implant fatigue, such as demonstrated by the 1.1 × 105 fold increase in the Nf of walking versus stair climbing at 7.603 × 1011 versus 6.858 × 105, respectively. The dynamic immersion tests could establish data on activity levels when an implant fails over time. This information could provide a basis for more robust future implant designs.

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Influence of Plasma Immersion Ion Implantation on Ti-6Al-4V Alloy Tensile–Tensile Fatigue Behavior: The Introduction of Shot Peening as a Pretreatment

Oliveira,

Nozaki,

Fernandes

et al. 2023

J. of Materi Eng and Perform

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Fatigue Analysis of Threaded Components with Cd and Zn-Ni Anticorrosive Coatings

Cited by 6 publications

References 21 publications

Study on wear, corrosion and fatigue properties of dual metallic bearings coated with nickel and aluminum particles

Study on wear, corrosion and fatigue properties of dual metallic bearings coated with nickel and aluminum particles

Level of Activity Changes Increases the Fatigue Life of the Porous Magnesium Scaffold, as Observed in Dynamic Immersion Tests, over Time

Influence of Plasma Immersion Ion Implantation on Ti-6Al-4V Alloy Tensile–Tensile Fatigue Behavior: The Introduction of Shot Peening as a Pretreatment

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