Improved oxidation resistance of TiAlN coatings by doping with Si or B

Pfeiler, M.; Zechner, Josef; Penoy, M.; Michotte, C.; Mitterer, Christian; Kathrein, M.

doi:10.1016/j.surfcoat.2009.03.036

Cited by 94 publications

(36 citation statements)

References 34 publications

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“…Even relatively low concentration of Si can inhibit grain growth and stimulate the renucleation of grains in the presence of bias voltage at the substrate during deposition of TiAiN [33] and TiBN coatings [34]. Furthermore, the addition of small amount of Si significantly improves the thermal stability and oxidation resistance of TiAlN coatings [35]. B is known to be an even better choice for the amorphous phase formation and additionally, the incorporation of B into the coating leads to the systematic decrease of mass changes during oxidation processes at high temperatures [18,36].…”

Section: Introductionmentioning

confidence: 99%

High temperature behavior of functional TiAlBSiN nanocomposite coatings

Pshyk

Coy

Nowaczyk

et al. 2016

Surface and Coatings Technology

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This article reports on the thorough characterization of structural-phase transformation in amorphous TiAlBSiN coating after high temperature annealing at 900°C in ambient air. The influence of annealing on the tribomechanical behavior of the coating at nano and micro scale was also examined. The research included multiple experimental techniques, i.e. AFM, SEM, TEM, HR-TEM, EDS, XPS and Raman spectroscopy. Experiments showed that the amorphous phase of the TiAlBSiN coating undergoes a structural transformation, evidenced in the changes of parameters such as topological and chemical short-range order after the post-deposition annealing at 900°C in air. The observed structural transformation, leads to a phase separation with the formation of a three dimensional nc-TiAl 3 /a-SiBN(O) nanocomposite structure. The relative increase of hardness, reduced elastic modulus, H/Er ratio and H 2 /E 3 r ratio after high temperature treatment of TiAlBSiN coatings is also reported. The complex interdependency between chemistry, morphology and relative composition of the amorphous TiAlBSiN coating phase, during the high temperature treatment, with the respective change of the tribo-mechanical characteristics, are evidence of the improvement of the coating properties in response to the environmental conditions and high temperature. This work contributes particularly to the development and understanding of flexible nanocomposite protective coatings and their changes at high temperature of operation.

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Section: Introductionmentioning

confidence: 99%

High temperature behavior of functional TiAlBSiN nanocomposite coatings

Pshyk

Coy

Nowaczyk

et al. 2016

Surface and Coatings Technology

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“…Figure 7 shows the XRD/SEM/EPMA results of the film after oxidation at 900°C for 30 h. Oxidation at 900°C progressed faster than that at 800°C (Figs. 3,4,5,6). Rutile-TiO 2 , a-Al 2 O 3 , and the SUS304 substrate were detected, along with weak fcc-TiN peaks, owing to the oxidation of most of the film (Fig.…”

Section: Methodsmentioning

confidence: 98%

“…Their oxidation resistance is better than that of the TiN film that oxidizes rapidly above 550°C and comparable to that of AlN film that has high thermal shock resistance [1,2]. TiAlSiN films were developed to improve film performance and have been deposited on steels [3][4][5], Si wafers [6][7][8], WC-Co cemented carbides [9][10][11], and the Ti6Al4V alloy [12] in the form of a monolayer [4][5][6][7][8][9][10]12] or nano-multilayers [11] by magnetron sputtering [4,6,8], arc evaporation [9], or arc ion plating [3,7,11,12]. The films consisted primarily of (TiN ?…”

Section: Introductionmentioning

confidence: 99%

“…AlN) [8,10], or (Ti, Al, Si)N solid solution [9,12]. Their thermal stability was studied at 650-1000°C in vacuum [5,9], nitrogen [10], or air [3,4,[6][7][8]12]. The oxidation resulted in the formation of a-Al 2 O 3 and (rutile and/or anatase)-TiO 2 , but with different oxide scale morphologies depending on the investigator [3][4][5][6][7][8]12].…”

Section: Introductionmentioning

confidence: 99%

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Oxidation of Nano-multilayered TiAlSiN Films at 800–900 °C in Air

Bak

Lee

2015

Oxid Met

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Thin films of Ti 0.26 Al 0.163 Si 0.012 N 0.565 , with alternating nanocrystalline TiSiN and AlSiN nanolayers were deposited on steel by arc ion plating. Oxidation at 800-900°C for up to 75 h led to the formation of rutile-TiO 2 and a-Al 2 O 3 . Silicon accumulated around the interface between the film and oxide scale. The scale structure changed from Al 2 O 3 /TiO 2 bilayers, through TiO 2 /Al 2 O 3 /TiO 2 triple layers, to TiO 2 /Al 2 O 3 /(TiO 2 , Al 2 O 3 , SiO 2 )-mixed triple layers, as the oxidation time increased.

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“…TiAlBN coatings deposited by plasma-assisted twin electron beam (EB) evaporative PVD have shown excellent thermal stability, mechanical properties and field trial results for coated drills when comprised of a nc-(Ti,Al)N/a-BN nanocomposite coating structure [8,9]. Recent results have also shown TiAlBN coatings to exhibit oxidation resistance to temperatures above 800 °C [10].…”

Section: Introductionmentioning

confidence: 99%