Residual Stress and Tribological Performance of ZrN Coatings Produced by Reactive Bipolar Pulsed Magnetron Sputtering

Laera, Anna Maria; Massaro, Marcello; Dimaio, D.; Vencl, Aleksandar; Rizzo, A.

doi:10.3390/ma14216462

Cited by 9 publications

(4 citation statements)

References 45 publications

(55 reference statements)

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“…This indicates that the coating did lose some hardness by the NiTi addition; however, the lower elastic modulus shows that in return it gained some elasticity. Table 6 compares the hardness and elastic modulus values of the Ni-P and Ni-P-NiTi coatings found experimentally to the typical values found in the literature on Ni-P coating [6,16,28,29], the NiTi alloy [16,30,31], and the AISI 1018 substrate [29,32]. Both coatings had considerably higher values than the typical range of AISI 1018.…”

Section: Hardnessmentioning

confidence: 67%

“…The thinner coating's higher wear rate compared to the thick coating can be explained through the relationship between internal stresses present in the coating, and their expected effects on tribological behavior. Work by A. M. Laera et al [32] assessed the relationship between the residual stress in ZrO coating with its tribological behaviour and had found that compressive internal stresses correlate with higher wear resistance. We can assume the residual stresses in Ni-P coating thicknesses, as prior literature has found that thicker coatings have compressive residual stress while thinner coatings are tensile [23].…”

Section: Volume Loss and Wear Ratesmentioning

confidence: 99%

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Effect of Coating Thickness on Wear Behaviour of Monolithic Ni-P and Ni-P-NiTi Composite Coatings

Jensen

Farhat

Islam

et al. 2022

Solids

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Protective coatings can prolong the lifespan of engineering components. Electroless Ni-P coating is a very hard coating with high corrosion resistance, but low toughness. The addition of NiTi nanoparticles into the coating has shown the potential to increase the toughness of electroless Ni-P and could expand its usability as a protective coating for more applications. However, the study of the tribological behaviour and wear mechanisms of Ni-P-NiTi composite coating has been minimal. Furthermore, there is no studies on the effect of coating thickness on monolithic and composite electroless Ni-P coating wear behaviour. The wear rates of each coating were found by measuring the volume loss form multi-pass wear tests. The wear tracks were examine using a confocal microscope to observe the wear mechanisms. Each sample was tested using a spherical indenter and sharp indenter. It was found that the NiTi nanoparticle addition displayed toughening mechanisms and did improve the coating’s wear resistance. The 9 μm thick Ni-P-NiTi coating had less cracking and more uniform wear than the 9 μm thick Ni-P coating. For both the monolithic and composite coatings, their thicker version had higher wear resistance than their thinner counterpart. This was explained by the often observed trend in coatings where it has higher tensile stress near the substrate interface, which decreases and becomes compressive as thickness increases. Overall, the 9 μm thick Ni-P-NiTi coating had the highest wear resistance out of all the coatings tested.

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Section: Hardnessmentioning

confidence: 67%

Section: Volume Loss and Wear Ratesmentioning

confidence: 99%

Effect of Coating Thickness on Wear Behaviour of Monolithic Ni-P and Ni-P-NiTi Composite Coatings

Jensen

Farhat

Islam

et al. 2022

Solids

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“…Although the values shown cannot be directly compared with those obtained by other authors because the tested pairs are different, these show the same trends in the behaviour of friction coefficients in dental enamel and dentin, as well as in materials of dental restoration [20,[22][23][24] On the other hand, in the morphology of the wear marks it can be found that for the ceramic material in dry conditions, the typical behaviour of ceramic materials is presented. These tend to fracture [25,26] due to the fatigue caused by the tests, which is reflected in the appearance of cracks and subsequent detachment of the material, as shown in Figure 4a. This same phenomenon is observed in lubricated conditions only on a smaller scale, as shown in Figure 5a, where it is observed that the saliva helped to reduce wear significantly, as shown in Figure 6.…”

Section: Discussionmentioning

confidence: 99%

Wear and friction characterisation of some restorative dental materials

et al. 2022

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Dental wear is a complex field of tribology study, due to the combination of wear mechanisms, such as attrition, abrasion, erosion, and abfraction. The aim of the work was the study the wear in dental restorative materials, using a reciprocate tester in order to simulate the attrition in the oral cavity. This phenomenon occurs when sliding tooth against tooth, which generates considerable wear in the area of dental occlusion in the closed phase of mastication, and in the presence of parafunction such as bruxism. The experiments were performed employing ceramic (Ceramco 3), dental silver and, composite (Filtek Z350 XT) as restorative materials and nickel-chrome alloy as counter-body, using a reciprocating tribometer manufactured according to some parameters of standard ASTM G133-05. The geometrical configuration was a sphere on a flat plane. The experimental results obtained were volume loss and coefficient of friction of the different dental restorative materials. Also, wear mechanisms like plastic deformation, cracks, and delamination between others could be identified. Keywords: dental wear, attrition, dental restorative material, reciprocating movement, wear mechanisms.

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“…Indeed, residual stresses can significantly affect a ceramic part’s mechanical properties, reliability and service life—either beneficially or detrimentally [ 4 ]. In the case of parts subjected to contact pressure or tribological stress, it becomes essential to compare these residual stresses before and after the tests [ 5 , 6 , 7 , 8 ]. Ideally, it would also be possible to determine the pressure distribution and its evolution throughout the contact at the interface under static or dynamic conditions.…”

Section: Introductionmentioning

confidence: 99%

Determination of the Pressure Dependence of Raman Mode for an Alumina–Glass Pair in Hertzian Contact

et al. 2022

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Optimising the performance of materials requires, among other things, the characterisation of residual stresses during the design stage. Raman spectroscopy offers access to these residual stresses at the micrometre scale when this inelastic light scattering is active in these materials. In this case, the relationship between the Raman mode shift and the pressure must be known. High-pressure cells with diamond anvils or bending instruments coupled to Raman spectrometers are habitually used to determine this relationship. In this article, we propose a new method that involves a Hertzian contact to obtain this relationship. A device that compresses an alumina ball against a transparent glass plane is connected to a Raman spectrometer. Under these conditions, the contact pressure can be as high as 1.5 GPa. The contact between the glass plane and the ball is observed through a diaphragm. Several hundred Raman spectra are recorded depending on the contact diameter. The spectral profiles obtained represent the shift in the Raman modes of alumina and glass along the contact diameter. Hertz’s theory accurately describes the pressure profile as a function of position for elastic materials. Therefore, the contact diameter can be measured by fitting the spectral profile with a function identical to the Hertz profile. We then deduce the maximum pressure. Next, the calculated pressure profile along the contact diameter is correlated with the spectral profile. We obtain a pressure dependence of the Raman mode with a coefficient equal to 2.07 cm−1/GPa for the Eg modes of alumina at 417 cm−1, which is in good agreement with the literature. In the case of glass, we refine the measurement of the Q3 mode shift at 1096 cm−1 in the studied pressure range compared to the literature. We find a coefficient of 4.31 cm−1/GPa. This work on static contacts opens up promising prospects for investigations into dynamic contacts in tribology.

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Residual Stress and Tribological Performance of ZrN Coatings Produced by Reactive Bipolar Pulsed Magnetron Sputtering

Cited by 9 publications

References 45 publications

Effect of Coating Thickness on Wear Behaviour of Monolithic Ni-P and Ni-P-NiTi Composite Coatings

Effect of Coating Thickness on Wear Behaviour of Monolithic Ni-P and Ni-P-NiTi Composite Coatings

Wear and friction characterisation of some restorative dental materials

Determination of the Pressure Dependence of Raman Mode for an Alumina–Glass Pair in Hertzian Contact

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