Effects of Zr, Nb, or Si addition on the microstructural, mechanical, and corrosion resistance of TiCN hard coatings

Constantin, Lidia R.; Braic, M.; Dinu, Mihaela; Bâlâceanu, M.; Braic, V.; Farcău, Cosmin; Vlădescu, Alina

doi:10.1002/maco.201508737

Cited by 11 publications

(5 citation statements)

References 56 publications

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“…When the diffraction peak is shifted towards lower Bragg angle, an increase of lattice parameter is observed. This result is in good agreement with those of Constantin et al related to TiCN coatings [37]. Both coatings exceeded the size of the standard unit cell parameters.…”

Section: Elemental and Phase Compositionsupporting

confidence: 92%

Improvement of CoCr Alloy Characteristics by Ti-Based Carbonitride Coatings Used in Orthopedic Applications

et al. 2020

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The response of the human body to implanted biomaterials involves several complex reactions. The potential success of implantation depends on the knowledge of the interaction between the biomaterials and the corrosive environment prior to the implantation. Thus, in the present study, the in vitro corrosion behavior of biocompatible carbonitride-based coatings are discussed, based on microstructure, mechanical properties, roughness and morphology. TiCN and TiSiCN coatings were prepared by the cathodic arc deposition method and were analyzed as a possible solution for load bearing implants. It was found that both coatings have an almost stoichiometric structure, being solid solutions, which consist of a mixture of TiC and TiN, with a face-centered cubic (FCC) structure. The crystallite size decreased with the addition of Si into the TiCN matrix: the crystallite size of TiCN was 16.4 nm, while TiSiCN was 14.6 nm. The addition of Si into TiCN resulted in smaller Ra roughness values, indicating a beneficial effect of Si. All investigated surfaces have positive skewness, being adequate for the load bearing implants, which work in a corrosive environment. The hardness of the TiCN coating was 36.6 ± 2.9 GPa and was significantly increased to 47.4 ± 1 GPa when small amounts of Si were added into the TiCN layer structure. A sharp increase in resistance to plastic deformation (H3/E2 ratio) from 0.63 to 1.1 was found after the addition of Si into the TiCN matrix. The most electropositive value of corrosion potential was found for the TiSiCN coating (−14 mV), as well as the smallest value of corrosion current density (49.6 nA cm2), indicating good corrosion resistance in 90% DMEM + 10% FBS, at 37 ± 0.5 °C.

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Section: Elemental and Phase Compositionsupporting

confidence: 92%

Improvement of CoCr Alloy Characteristics by Ti-Based Carbonitride Coatings Used in Orthopedic Applications

et al. 2020

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“…According to these results, one can see that TiC and ZrC are textured in the (111) direction, while TiNbC exhibited a strong (200) preferred orientation. The (111) orientation is specific to coatings deposited by the cathodic arc method [38][39][40]. The (111) preferred texture is frequently reported in the case of coatings deposited with intense ion bombardment.…”

Section: Elemental and Phase Compositionmentioning

confidence: 96%

In Vitro Corrosion and Tribocorrosion Performance of Biocompatible Carbide Coatings

et al. 2020

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The present study aims to explain the corrosion and the tribocorrosion performance in simulated conditions of the human body by the level of stress, adhesion of coating to substrate, roughness, and hardness. The coatings were synthesized by the cathodic arc evaporation method on 316L stainless steel substrates to be used for load bearing implants. Structure, elemental, and phase compositions were studied by means of energy dispersive spectrometry and X-ray diffraction, respectively. The grain size and strain of the coatings were determined by the Williamson–Hall plot method. Tests on hardness, adhesion, roughness, and electrochemical behavior in 0.9% NaCl solution at 37 ± 0.5 °C were carried out. Tribocorrosion performances, evaluated by measuring the friction coefficient and wear rate, were conducted in 0.9% NaCl solution using the pin on disc method at 37 ± 0.5 °C. TiC and ZrC exhibited a (111) preferred orientation, while TiNbC had a (200) orientation and the smallest crystallite size (8.1 nm). TiC was rougher than ZrC and TiNbC; the lowest roughness was found for TiNbC coatings. The highest hardness and adhesion values were found for TiNbC, followed by TiC and the ZrC. All coatings improved the corrosion resistance of 316L steels, but TiNbC showed the best corrosion behavior. TiNbC had the lowest friction coefficient (1.6) and wear rate (0.99 × 10−5 mm3·N−1∙m−1) values, indicating the best tribocorrosive performance in 0.9% NaCl at 37 ± 0.5 °C.

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“…A mayores potenciales, los elementos presentes en el recubrimiento forman óxidos complejos que mejoran el comportamiento a la corrosión. Se ha reportado en la literatura que la presencia de compuestos amorfos de silicio (Si, SiN, SiCN) aumenta la resistencia a la corrosión de los recubrimientos cerámicos [29].…”

Section: Comportamiento a La Corrosiónunclassified

Análisis comparativo de recubrimientos duros de DLC y TiSiCN frente al desgaste y a la corrosión

et al. 2023

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RESUMEN La vida en servicio de elementos de máquinas utilizados en la industria del gas y del petróleo puede ser extendida con el uso de recubrimientos que permiten mejorar las propiedades superficiales, como la resistencia al desgaste y a la corrosión. Los recubrimientos DLC son conocidos por su bajo coeficiente de fricción, alta resistencia al desgaste e inercia química. Las películas del tipo TiSiCN son cerámicas duras, por lo que otorgan una buena resistencia al desgaste abrasivo y erosivo. En este trabajo se analizan de forma comparativa estos dos recubrimientos cuando son depositados sobre un acero de media aleación AISI 4140. Se midió espesor y se hizo caracterización por XPS, DRX y espectroscopía Raman. Se realizaron ensayos de desgaste adhesivo tipo Pin-on-Disk y desgaste abrasivo (ASTM G65). Se evaluó la adhesión por Scrach Test. La resistencia a la corrosión se evaluó mediante cámara de niebla salina y ensayos potenciodinámicos. El DLC presentó un bajo coeficiente de fricción μ ~ 0,2, con una pérdida de volumen dos veces menor que el TiSiCN, mientras que este último presentó una resistencia al desgaste abrasivo 30 veces superior. La adhesión del TiSiCN también fue superior. El DLC mostró una mayor resistencia a la corrosión.

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Effects of Zr, Nb, or Si addition on the microstructural, mechanical, and corrosion resistance of TiCN hard coatings

Cited by 11 publications

References 56 publications

Improvement of CoCr Alloy Characteristics by Ti-Based Carbonitride Coatings Used in Orthopedic Applications

Improvement of CoCr Alloy Characteristics by Ti-Based Carbonitride Coatings Used in Orthopedic Applications

In Vitro Corrosion and Tribocorrosion Performance of Biocompatible Carbide Coatings

Análisis comparativo de recubrimientos duros de DLC y TiSiCN frente al desgaste y a la corrosión

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