Architecture of PVD coatings for metalcutting applications: A review

Inspektor, A.; Salvador, Paul A.

doi:10.1016/j.surfcoat.2014.08.068

Cited by 206 publications

(80 citation statements)

References 124 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 effect of variation in Al content (fraction of x in Ti 1−x Al x N) has been the topic of many studies, and a seminal review was published by PalDey and Deevi [1]. It is generally accepted that increasing the aluminium content from x = 0.5 to about 0.65 (Al:Ti ratio of about 2:1) will improve the tool performance in many applications [2][3][4]. The main reasons are that hardness and compressive stress are further increased by distortion of the cubic crystal lattice.…”

Section: Introductionmentioning

confidence: 99%

Effect of Hexagonal Phase Content on Wear Behaviour of AlTiN Arc PVD Coatings

Kohlscheen

Bareiss

2018

Coatings

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In this study, the effect of increasing aluminum content and magnetic steering field strength on the structure and wear behavior of arc PVD AlTiN coatings is discussed. Deposition was done by means of an industrial-scale PVD unit for tool coating. The aluminium content in the AlTi source material was increased from 67 to 73 at.%. We applied two settings of the magnetic field that steers the arc across the cathode surface thereby evaporating the AlTi alloy differently. The resulting coating thickness ranged from 3.5 to about 7 µm. Cemented tungsten carbide was used as substrate material. Coating properties like hardness, adhesion, and crystal phases were analyzed by indentation and X-ray diffraction, respectively. The wear behaviour of the different AlTiN hard coatings were investigated in two ways. In a first idealized test, cyclic impacting was done applying a constant force. The resulting wear pattern was quantified by an Alicona multi-focus microscope. A second wear test was done by metal cutting under realistic conditions. Fly milling of ductile cast iron (EN-GJS-700) was performed with regular interruptions in order to measure the increasing wear mark. As expected, aluminium contents above 67 at.% (in the metal fraction of the coating) lead to a decreased wear resistance as the soft hexagonal phase exceeds values of a few vol.%. However, it was found that the formation of the hexagonal phase can be effectively influenced and delayed by increasing the magnetic steering field at the cathode. The wear behavior observed in cyclic impact testing corresponds well to results obtained with the more complex loading situation encountered in milling.

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“…In addition to these studies, there are several other available studies in the literature targeting TiN coatings along with their processing techniques and analyses [29][30][31][32][33][34][35][36]. In addition to TiN coating, different types of hard coatings developed under various employed conditions have also been published extensively [37][38][39][40][41][42][43][44][45][46][47][48]. The basic idea discussed in those studies is related to the properties and characteristic of deposited coatings, which are subjected mainly to the change of process parameters, type of material and processing approach.…”

Section: Introductionmentioning

confidence: 99%