Structural, mechanical, and tribological studies of Cr–Ti–Al–N coating with different chemical compositions

Tam, Pui Lam; Zhou, Zhifeng; Shum, P.W.; Li, K.Y.

doi:10.1016/j.tsf.2007.07.127

Cited by 98 publications

(46 citation statements)

References 25 publications

(32 reference statements)

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“…The values of binding energies obtained for the Ti2p1/2 peak were 463.7 eV and the lower value for Ti2p was 457.6 eV. According to the literature (Tam et al, 2008;Kim et al, 2002) for the Ti2p1/2 peak, the first one (463.5 eV) and the second one (458.6 eV) can be assigned to Ti-O2 and Ti-N bonds. The appearance of the peak at 457.6 eV clearly shows that Ti has reacted with N; therefore, it can be assigned to Ti-N (Badrinarayanan et al, 1989;Moreno et al 2011).…”

Section: Atomic Composition (At%) (Ti+al/n)mentioning

confidence: 82%

A Practical Application of X-Ray Spectroscopy in Ti-Al-N and Cr-Al-N Thin Films

Ipaz¹,

Aperador²,

Caicedo³

et al. 2012

X-Ray Spectroscopy

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Section: Atomic Composition (At%) (Ti+al/n)mentioning

confidence: 82%

A Practical Application of X-Ray Spectroscopy in Ti-Al-N and Cr-Al-N Thin Films

Ipaz¹,

Aperador²,

Caicedo³

et al. 2012

X-Ray Spectroscopy

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“…2,3 For the same reasons, in recent years, quaternary compounds have received increasing attention in order to surpass the properties of TiAlN. Thus, yttrium was shown to enhance oxidation resistance and hardness, 4 TiAlZrN has been found to have excellent adhesive strength to the substrate in terms of critical load, 5 TiAlCrN and TiAlHfN have higher wear resistance and hardness, [6][7][8] while TiAlVN has been introduced as possible candidate for low-friction coatings due to its enhanced tribological properties. 9 Generally, for all these compounds, results show that as long as the B1-NaCl structure is maintained, one can achieve these goals.…”

Section: Introductionmentioning

confidence: 99%

Electronic mechanism for toughness enhancement inTixM1−xN(M=M

2010

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Toughness, besides hardness, is one of the most important properties of wear-resistant coatings. We use ab initio density-functional theory calculations to investigate the mechanical properties of ternary metal nitrides Ti x M 1−x N, with M = Mo and W, for x = 0.5. Results show that Mo and W alloying significantly enhances the toughness of TiN. The electronic mechanism responsible for this improvement, as revealed by electronic structure calculations, stems from the changes in charge density induced by the additional transition-metal atom. This leads to the formation of a layered electronic arrangement, characterized by strong, respectively, weak, directional bonding, which enables a selective response to strain, respectively, shear, deformations of the structures and yields up to 60% decrease in C 44 values.

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“…The later concept has been found to have promising performance compared to that of ternary films. Ti-Al-Cr-N system offers a high variability ranging from Cr rich to Al rich [11,12] coatings. These films demonstrated improved hardness and thermal stability, oxidation resistance and exhibit lower friction and wear coefficient.…”

Section: Introductionmentioning

confidence: 99%

Study of the mechanical properties of Ti-and Cr-based multicomponent hard coatings

et al. 2018

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Abstract. TiCrAlN and CrTiAlN multicomponent coatings have been developed using closed-field unbalanced magnetron sputtering technique (CFUBMS) in a gas mixture of Ar + N2. The nitrogen level was varied by using the feedback control of plasma optical emission monitor (OEM). An investigation into the effect of the CFUBMS process parameters on the properties of the coatings was undertaken. The main coatings parameters such as thickness, surface morphology, nanohardness, strength of adhesion and wear resistance were studied by means of ball-cratering method, atomic force microscopy, scanning electron microscopy, scratch tests and nanoindentation measurements. The study revealed strong dependency of the mechanical properties on the nitrogen flow rate. Analysis of the experimental results showed that Cr-based multicomponent coatings possess better mechanical properties than Ti-based coatings at a nitrogen flow rate of 21 sccm: higher value of hardness (≤ 31GPa) and higher scratch resistance (> 30 N).

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Structural, mechanical, and tribological studies of Cr–Ti–Al–N coating with different chemical compositions

Cited by 98 publications

References 25 publications

A Practical Application of X-Ray Spectroscopy in Ti-Al-N and Cr-Al-N Thin Films

A Practical Application of X-Ray Spectroscopy in Ti-Al-N and Cr-Al-N Thin Films

Electronic mechanism for toughness enhancement inTixM1−xN(M=M

Study of the mechanical properties of Ti-and Cr-based multicomponent hard coatings

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