Growth and Characterization of Nanostructured TiCrN Films Prepared by DC Magnetron Cosputtering

Paksunchai, Chutima; Denchitcharoen, Somyod; Chaiyakun, Surasing; Limsuwan, Pichet

doi:10.1155/2014/609482

Cited by 23 publications

(8 citation statements)

References 29 publications

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“…Recent research found TiAlN with hardness values of up to 35GPa, which is 50% higher than that of TiN [6,7]. Further research investigated the influence of new dopants other than Al into the TiN lattice, such as: Si, Nb, Mo, B, Si and Cr amongst others [8][9][10][11][12].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

High temperature in-situ phase stability of sputtered TiAlxN coatings

Patel

Mohammadpour

Mondinos

et al. 2019

Journal of Alloys and Compounds

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The temperature dependence of phase composition and lattice parameters, for TiAl x N thin film coating, are experimentally investigated by in-situ synchrotron radiation X-ray diffraction (SR-XRD), at temperatures between 25°C to 700 °C. Mechanical properties, such as: Young's modulus (E), hardness (H) and plastic deformation index (PDI)-were experimentally determined by nanoindentation, at 25 °C. Crystalline structural analysis, of SR-XRD results, indicates the major phases are TiN and AlN; with Ti 2 O and TiO 2 phases also present above 600 °C. The lattice constants increased with an increase in temperature. Atomic and phase compositions, at 25 °C, were also verified by X-ray photoelectron spectroscopy (XPS). Field emission scanning electron microscopy (FESEM) images display an increase in surface roughness and reduction in grain size, with increasing Aluminium percentage (Al%). Nanoindentation analysis showed a maximum hardness of 25.1 ± 1.5 GPa (sample containing 12% Al), which was subsequently reduced upon addition of more Aluminium. Finite element modelling (FEM), including von Mises stress distribution, indicates lower mechanical integrity, for samples with high Al% content.

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Section: Accepted Manuscriptmentioning

confidence: 99%

High temperature in-situ phase stability of sputtered TiAlxN coatings

Patel

Mohammadpour

Mondinos

et al. 2019

Journal of Alloys and Compounds

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“…In all the films, it could be observed the chromium nitride Cr 2 N in the solid solution (Ti,Cr)N, whereas, the titanium nitride which coexists with Cr 2 N phase, evolves toward three phases: Ti 2 N, TiN 0.3 and TiN. This could be explained by the enthalpy formation of the nitride of Cr and Ti (ΔH TiN = − 337.65 kJ/mol and ΔH CrN = − 117.15 kJ/mol), which shows that the Ti-N is easier to be formed than Cr-N [32].…”

Section: Structure Analysesmentioning

confidence: 98%

Effect of Ar/N2 flow ratio on the microstructure and mechanical properties of Ti-Cr-N coatings deposited by DC magnetron sputtering on AISI D2 tool steels

Kehal¹,

Saoula²,

Abaidia³

et al. 2021

Surface and Coatings Technology

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Ti-Cr-N coatings were deposited on Si (100) and AISI D2 tool steel substrates by reactive DC magnetron cosputtering technique from titanium and chromium target in mixed Ar/N 2 atmosphere. The Ar/N 2 ratio effects on the chemical composition, structure, morphology, intrinsic stress and mechanical properties of the Ti-Cr-N coatings were investigated. The growing process of Ti-Cr-N coatings can be divided into three stages: Stage I, in poisoning mode (low flow ratio 1 < Ar/N 2 ≤ 1.4), Stage II, in transition mode (intermediate flow ratio 1.4 ≤ Ar/N 2 ≤ 3) and Stage III in metallic mode (Ar/N 2 > 3). For all samples, XRD analysis shown the formation of mixed nitrides phases. In stage I, Ti 2 N, TiN 0.3 , and hexagonal-Cr 2 N phases were observed. In Stage II, TiN 0.3 , Cr 2 N, and cubic-TiN phases were formed, while only TiN and Cr 2 N are observed in stage III. The coatings deposited with Ar/N₂ ratio of 3 shows the largest hardness of 24 GPa which is attribute to the dense structure and smoother surface morphology. The properties of the films are discussed in terms of evolution growth stages resulting by the variation of Ar/N 2 flow ratios.

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“…Determining that the increase in the number of interfaces causes a distortion of the crystalline structure due to residual stresses within this multilayers system, which will influence the mechanical and tribological properties of this type of coatings. From these results it was possible to infer that all coatings have a face-centered cubic crystal structure (FCC) [5,10].…”

Section: Comparison Between Nitride Coatings 31 Structural Study For Tin and Ticrn Nitride Coatingsmentioning

confidence: 99%

Analysis of the Tribological Evolution of Nitride-Based Coatings

Ortiz¹,

Hernández‐Rengifo²,

Caicedo³

2022

Tribology of Machine Elements - Fundamentals and Applications

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This chapter describes the fundamental and technological role of nitride-based hard coatings as protective coatings in some applications within the metalworking industry. For this, this chapter will present a critical review of previous research and recent developments on nitride-based coatings in different systems such as (multilayers, quaternaries, among others), where it will be possible to demonstrate their main properties and advantages that they can grant when they are implemented on conventional steels, such as greater hardness, surface control, electrochemical resistance, resistance against wear, among others. These results will determine that this type of coatings are suitable candidates to be implemented as protective coatings on cutting tools, which suffer from high wear in machining processes in the metalworking industry.

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Growth and Characterization of Nanostructured TiCrN Films Prepared by DC Magnetron Cosputtering

Cited by 23 publications

References 29 publications

High temperature in-situ phase stability of sputtered TiAlxN coatings

High temperature in-situ phase stability of sputtered TiAlxN coatings

Effect of Ar/N2 flow ratio on the microstructure and mechanical properties of Ti-Cr-N coatings deposited by DC magnetron sputtering on AISI D2 tool steels

Analysis of the Tribological Evolution of Nitride-Based Coatings

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