Microstructural and electrochemical properties of TiAlN(Ag,Cu) nanocomposite coatings for medical applications deposited by dc magnetron sputtering

Mejía, V Hernán D; Echavarría, Aida M.; Calderón, Jorge A.; G, Gilberto Bejarano

doi:10.1016/j.jallcom.2020.154396

Cited by 32 publications

(11 citation statements)

References 45 publications

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“…As mentioned previously, the level of residual stresses inside the coatings impacts their properties and, thus, their machining performance [30,38,39,43]. There are some recent studies made on this topic, as the work presented by Hou et al [72], where the influence of compressive stresses on the TiAlN-coated tool's performance when milling Ti alloy Ti-6Al-4V was investigated.…”

Section: Milling Processmentioning

confidence: 99%

“…Coatings are not only used on tools for metal cutting operations [35,36], their mechanical properties, high wear resistance, high temperature resistance and high corrosion resistance makes them very appealing for a wide range of applications. For example, they have seen some recent use in wood cutting processes [37], medical applications [38], mold industry [39], automotive (especially for brake pads) [40] and even being deposited in alloys used for nuclear fuel cladding [41,42].…”

Section: Introductionmentioning

confidence: 99%

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Characteristics and Wear Mechanisms of TiAlN-Based Coatings for Machining Applications: A Comprehensive Review

Sousa

Silva

Pinto

et al. 2021

Metals

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The machining process is still a very relevant process in today’s industry, being used to produce high quality parts for multiple industry sectors. The machining processes are heavily researched, with the focus on the improvement of these processes. One of these process improvements was the creation and implementation of tool coatings in various machining operations. These coatings improved overall process productivity and tool-life, with new coatings being developed for various machining applications. TiAlN coatings are still very present in today’s industry, being used due to its incredible wear behavior at high machining speeds, high mechanical properties, having a high-thermal stability and high corrosion resistance even at high machining temperatures. Novel TiAlN-based coatings doped with Ru, Mo and Ta are currently under investigation, as they show tremendous potential in terms of mechanical properties and wear behavior improvement. With the improvement of deposition technology, recent research seems to focus primarily on the study of nanolayered and nanocomposite TiAlN-based coatings, as the thinner layers improve drastically these coating’s beneficial properties for machining applications. In this review, the recent developments of TiAlN-based coatings are going to be presented, analyzed and their mechanical properties and cutting behavior for the turning and milling processes are compared.

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Section: Milling Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characteristics and Wear Mechanisms of TiAlN-Based Coatings for Machining Applications: A Comprehensive Review

Sousa

Silva

Pinto

et al. 2021

Metals

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“…Therefore, CrN coatings have broad market prospects in the elds of cutting tools, engine parts, and surface corrosion resistance and decoration [8][9][10]. On the other hand, CrN lms are generally prepared by physical vapor deposition (PVD) techniques, among which direct current (DC) magnetron sputtering has attracted considerable interest [11][12][13]. Particularly, the DC magnetron sputtering of PVD technique is widely used due to its high deposition rate and the overall quality of the lms.…”

Section: Introductionmentioning

confidence: 99%

Improvement of the properties of CrN Films on oxynitriding treated Vanadis 23 high-speed steel by the DC magnetron sputtering

Chang¹,

Shiao²,

Huang³

2023

Preprint

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This study coated CrN films onto oxynitriding-treated Vanadis 23 high-speed steel using the DC magnetron sputtering process of the PVD technique. The experimental parameters include various deposition temperatures (275, 300, 325, and 350°C), a bias of -25 V, a power of 100 W, a gas flow rate of 45/30 (Ar/N2) sccm, and a deposition time of 2.5 h. The research results show that when the coatings were deposited at 325°C, the CrN coatings possessed an obvious columnar crystal structure, the highest hardness (13.4 GPa), and the highest elastic modulus (159.7 GPa). In addition, the CrN coating had the best wear properties (the lowest specific wear rates were 1.07×10− 6 and 1.33×10− 6 mm3·m− 1·N− 1 under the loads of 2 N and 4 N, respectively) and good corrosion resistance (corrosion current was 8.90×10− 5 A·cm− 2, and polarization resistance was 822.11 Ω·cm2 in a 3.5 wt% NaCl solution).

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“…However, the relatively low chromium con-tent (~13 wt.%) in solutions containing chlorine results in lower corrosion resistance than other stainless steels [5]. Some surface modification methods to raise the corrosion resistance of 2Cr13 steels have been applied, including nitriding, nitrocarburizing, laser transformation hardening, plasma immersion ion implantation, physical vapor deposition, and the other processing technologies [6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Effect of electric potentials on high‐temperature plasma nitriding of 2Cr13 stainless steel with active screen assisted

Shao

Wang

Zhang

et al. 2022

Materialwissenschaft Werkst

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The influence of electric potentials on the characteristics of modified layers with plasma nitriding of 2Cr13 stainless steel at a high temperature was investigated. Three active screens were placed on the cathodic plate. Three groups of 2Cr13 stainless steel samples were set with cathodic, anodic, and floating potentials. Samples were nitrided at 500 °C for 5 h in an ammonia atmosphere. The treated samples were analyzed using x‐ray diffraction, scanning electron microscopy with energy dispersive x‐ray spectroscopy, surface roughness tester, and atomic force microscopy. It is proved that nitriding treatments can be suitably carried out at three electric potentials, but the corresponding modified layers take on different microstructure, morphology, and hardness behaviors. It found that the three nitrided samples are mainly composed of the ϵ−Fe2‐3N and γ’−Fe4N phases. The order of thicknesses of the nitrided layers is: floating < anodic < cathodic potential. The results also demonstrated that electric potentials play essential roles in the corrosion resistance and tribological properties in plasma nitriding treatment. Because there is no visible precipitation of chromium nitride in the modified layer, the corrosion resistance of the floating nitrided sample is better than that of the other two samples.

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Microstructural and electrochemical properties of TiAlN(Ag,Cu) nanocomposite coatings for medical applications deposited by dc magnetron sputtering

Cited by 32 publications

References 45 publications

Characteristics and Wear Mechanisms of TiAlN-Based Coatings for Machining Applications: A Comprehensive Review

Characteristics and Wear Mechanisms of TiAlN-Based Coatings for Machining Applications: A Comprehensive Review

Improvement of the properties of CrN Films on oxynitriding treated Vanadis 23 high-speed steel by the DC magnetron sputtering

Effect of electric potentials on high‐temperature plasma nitriding of 2Cr13 stainless steel with active screen assisted

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