Properties and performance of high aluminum containing (Ti,Al)N based supernitride coatings in innovative cutting applications

Erkens, G.; Cremer, R.; Hamoudi, T.; Bouzakis, K.‐D.; Mirisidis, I.; Hadjiyiannis, S.; Skordaris, G.; Asimakopoulos, A.; Kombogiannis, S.; Anastopoulos, J.; Efstathiou, Kyriakos

doi:10.1016/j.surfcoat.2003.08.013

Cited by 66 publications

(20 citation statements)

References 6 publications

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“…[8][9][10][11][12][13][14] Moreover, it has been shown that alloying TiAlN with TaN enhances hardness, thermal stability, and oxidation resistance. Prior to film growth, the system is degassed using two resistive heaters, each operated at 2 kW for 1 h, resulting in a temperature Ts = 150 °C at the substrate position.…”

Section: Introducionmentioning

confidence: 99%

Low-temperature growth of dense and hard Ti0.41Al0.51Ta0.08N films via hybrid HIPIMS/DC magnetron co-sputtering with synchronized metal-ion irradiation

Fager

Tengstrand

et al. 2017

Journal of Applied Physics

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Section: Introducionmentioning

confidence: 99%

Low-temperature growth of dense and hard Ti0.41Al0.51Ta0.08N films via hybrid HIPIMS/DC magnetron co-sputtering with synchronized metal-ion irradiation

Fager

Tengstrand

et al. 2017

Journal of Applied Physics

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“…The high mobility of ions and, in particular, electrons results from a high ionization of the pulsed plasma. 3,4) This high mobility can then lead to higher adatom mobility, resulting in modified coating structures. 2) There are some reports on the effect of pulsing parameters on the properties and structure of hard nitride coatings in Unbalanced Magnetron Sputtering system, but there are a few reports on these effects in Balanced Magnetron Sputtering system.…”

Section: Introductionmentioning

confidence: 99%

Effect of Deposition Conditions on the Structure and Properties of CrAlN Films Prepared by Pulsed DC Reactive Sputtering in FTS Mode at High Al Content

et al. 2008

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CrAlN films were prepared by a pulsed DC magnetron sputtering in FTS mode with Cr-Al alloy targets (Cr/Al = 30 at%/70 at%) in a mixed atmosphere of Ar and N 2 . Effects of different deposition conditions (frequency, duty cycle, nitrogen flow rate and pulsed DC power) on the films structure and phase formation have been investigated. XRD analyses were carried out to determine the phases of the films. The surface morphology was observed using FE-SEM. Transmission electron microscopy studies were carried out for selected films. In order to investigate the relationship between the mechanical properties and microstructure of the films, the hardness was measured by a nanoindentation system. All films exhibited mixture of fcc-CrN and hcp-AlN structures with changing the sputtering conditions. With increasing pulse frequency, the relative percent of fcc-CrN phase decreased from $100% to $20%. In the current study it was found that there is an optimal duty cycle (around 82%) where the fcc-CrN relative% reaches to its highest value (about 98%). On the other hand, grain size of the films kept in the range of 20-25 nm below 82% of duty cycle, then increased up to $50 nm with increasing duty cycle. Changing the nitrogen flow rate affected the fcc-CrN relative % and films morphology. Under optimal nitrogen flow rate, fcc-CrN relative % reached to about 100% in addition to the formation of micro columnar morphology, which resulted in the highest plastic hardness of the films. It seems that the mechanical properties of the CrAlN films are directly influenced not only by fcc/hcp phase ratio, but also by morphology. These results suggest that the dominant fcc-CrN phase and high hardness of CrAlN films containing high Al content (Cr : Al ¼ 3 : 7) can be obtained under the restricted condition by the pulsed DC magnetron sputtering in FTS mode.

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“…Chromium based alloys are mainly used for the production of corrosion-, oxidation and heat-resistant alloys [38,39]. Aluminum forms a thin, corrosion resistant oxide layer when exposed to air.…”

Section: Boron Nitridementioning

confidence: 99%

Modern materials for forming and cutting tools – overview

Berger

Scheerer

Ellermeier³

2010

Materialwissenschaft Werkst

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Materials are an ever-changing field of science with high innovation potential. The knowledge in this subject is fundamental for manufacturing industry. Future products play a decisive role in choosing materials. With new production and processing technologies the quality of materials was improved significantly. Modern heat treatments and high specialized coatings create properties, which lead for example to high speed machining with an excellent productivity. Under these conditions, it is necessary, to develop customized products. This paper presents an overview of the state of the art of modern materials for forming and cutting tools and depicts the investigation on tool steels, cemented carbides, ceramics and materials with very high hardness and describes some selected fields of innovation in these fields.

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Properties and performance of high aluminum containing (Ti,Al)N based supernitride coatings in innovative cutting applications

Cited by 66 publications

References 6 publications

Low-temperature growth of dense and hard Ti0.41Al0.51Ta0.08N films via hybrid HIPIMS/DC magnetron co-sputtering with synchronized metal-ion irradiation

Low-temperature growth of dense and hard Ti0.41Al0.51Ta0.08N films via hybrid HIPIMS/DC magnetron co-sputtering with synchronized metal-ion irradiation

Effect of Deposition Conditions on the Structure and Properties of CrAlN Films Prepared by Pulsed DC Reactive Sputtering in FTS Mode at High Al Content

Modern materials for forming and cutting tools – overview

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