Influence of Ti addition on the properties of W–Ti–C/N sputtered films

Cavaleiro, A.; Trindade, B.; Vieira, M.T.

doi:10.1016/s0257-8972(03)00328-1

Cited by 49 publications

(22 citation statements)

References 36 publications

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“…Similar evolution of the structure as a function of the N content was found in industrially deposited films in relation to those deposited by Cavaleiro et al (2003) and Silva et al (2005) in laboratory equipment. As in these works, Fig.…”

Section: Chemical Composition and Structuresupporting

confidence: 71%

“…The chemical composition of the coatings produced in the laboratory equipment was extensively reported previously by Cavaleiro et al (2003) and Silva et al (2005Silva et al ( , 2008. Films with N content from 0 up to 55 at.% were deposited.…”

Section: Chemical Composition and Structurementioning

confidence: 99%

“…In previous research works, Cavaleiro et al (2003) performed a complete study of the W-Ti-N system in order to optimize the deposition by sputtering of thin coatings of this system. The chemical, physical and mechanical properties of the coatings were evaluated which made possible to select the Ti content for getting the best results: 20 wt.% Ti.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tribological behaviour of W–Ti–N coatings in semi-industrial strip-drawing tests

Severo¹,

Vilhena

Silva

et al. 2009

Journal of Materials Processing Technology

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a b s t r a c t W-Ti-N sputtered coatings were tested in semi-industrial conditions by strip drawing to access their ability for sheet metal forming. Both laboratory and industrially developed coatings were tested. In a first part of the study the upscale of the deposition of the W-Ti-N coatings was achieved. The main difference between the two types of coatings was the evolution of the chemical composition with the N content. However, similar trends in the hardness and scratch-test results were encountered being the best compromise of these properties reached for ∼40 at.% N in the industrially deposited films against the 35 at.% N for laboratory deposited ones.Excellent results were found in the strip-drawing tests for coated samples in comparison with uncoated tools. In any of the conditions tested no adhesion between the tool and the sheet material was found when 1 g m −2 of lubricant was used. Similar results were found between laboratory and industrially deposited coatings.

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Section: Chemical Composition and Structuresupporting

confidence: 71%

Section: Chemical Composition and Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tribological behaviour of W–Ti–N coatings in semi-industrial strip-drawing tests

Severo¹,

Vilhena

Silva

et al. 2009

Journal of Materials Processing Technology

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“…In experiments, the hardness of a thin film is measured from indentation tests, in which different factors affect the result, such as texture, average grain size, stoichiometry, and lattice mismatch between film and substrate materials. While the addition of a second transition metal has indeed often been connected to hardness enhancements in B1-TiMN [4][5][6][7], these findings may be due to film microstructure features Table 1. Present work DFT estimations of elastic properties for binary and ternary nitrides.…”

Section: Resultsmentioning

confidence: 99%

“…To develop thin film nitride alloys with suitable mechanical and physical properties, material chemical composition can be tuned, and growth and processing parameters optimized, to control stoichiometry, microstructure, and texture. For protective coatings, high hardness is obviously a very sought after characteristic [4][5][6][7][8], as it prevents the surface from being scratched and worn at extreme working pressures. Typically, hardness enhancement is achieved by hindering the dislocations mobility, and hence reducing the plastic deformations in a material [9,10].…”

Section: Introductionmentioning

confidence: 99%

Supertoughening in B1 transition metal nitride alloys by increased valence electron concentration

2011

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We use density functional theory calculations to explore the effects of alloying cubic TiN and VN with transition metals M = Nb, Ta, Mo, W in 50% concentrations. The obtained ternaries are predicted to become supertough as they are shown to be harder and significantly more ductile compared to the reference binaries. The primary electronic mechanism of this supertoughening effect is shown in a comprehensive electronic structure analysis of these compounds to be the increased valence electron concentration intrinsic to these ternaries. Our investigations reveal the complex nature of chemical bonding in these compounds, which ultimately explains the observed selective response to stress. The findings presented in this paper thus offer a design route for the synthesis of supertough transition metal nitride alloys via valence electron concentration tuning.

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

Constantin

Braic

Dinu

et al. 2016

Materials & Corrosion

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Stoichiometric TiZrCN, TiNbCN, and TiSiCN coatings, with Zr, Nb, or Si as alloying elements, were deposited on Si and M2 high speed steel substrates by the cathodic arc technique in a mixture of N2 and CH4 gases. Coatings with a C/N ratio value of about 0.5 have been prepared and comparatively investigated for elemental and phase composition, texture, adhesion, and anticorrosive properties. All coatings consisted of fcc solid solutions, with an (111) preferred orientation. The addition of either Zr, Nb, or Si in the basic structure of TiCN coatings resulted in adhesion enhancement (critical loads in the range 20–30 N) and increased corrosion resistance, as tested in 3.5% NaCl solution.

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Influence of Ti addition on the properties of W–Ti–C/N sputtered films

Cited by 49 publications

References 36 publications

Tribological behaviour of W–Ti–N coatings in semi-industrial strip-drawing tests

Tribological behaviour of W–Ti–N coatings in semi-industrial strip-drawing tests

Supertoughening in B1 transition metal nitride alloys by increased valence electron concentration

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

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