High temperature oxidation resistance of multilayered AlxTi1−xN/CrN coatings

Chang, Yin-Yu; Chang, Chi Lung; Kao, Ho-Yi

doi:10.1016/j.tsf.2011.04.038

Cited by 11 publications

(5 citation statements)

References 37 publications

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“…The ratio N/(Al + Ti + Cr + Mo) was 0.97~1.09 to be stoichiometric. The highest N/(Al + Ti) ratio was obtained for the AlTiN with atomic stoichiometry of Al 0.63 Ti 0.37 N. The Al/(Ti + Al) atomic ratio in the Al 0.63 Ti 0.37 N coating decreased to 0.63 compared with the Al 67 Ti 33 cathode material, which was attributed to the different average ionization of Al and Ti and the lower atomic mass of Al that led to a lower Al density in the evaporated vapor [35,44]. For the AlTiCrMoN-1 and AlTiCrMoN-2 coatings, the results showed stoichiometric Al 0.29 Ti 0.17 In order to describe the coating constitution, microstructure and compositional distribution, especially the TiN/AlTiN interlayer and the AlTiN/CrMoN top layer, the deposited AlTiCrMoN-2 coating was investigated by TEM.…”

Section: Microstructure Characterization Of the Deposited Coatingsmentioning

confidence: 93%

“…The highest N/(Al + Ti) ratio was obtained for the AlTiN with atomic stoichiometry of Al0.63Ti0.37N. The Al/(Ti + Al) atomic ratio in the Al0.63Ti0.37N coating decreased to 0.63 compared with the Al67Ti33 cathode material, which was attributed to the different average ionization of Al and Ti and the lower atomic mass of Al that led to a lower Al density in the evaporated vapor [35,44]. For the AlTiCrMoN-1 and AlTiCrMoN-2 coatings, the results showed stoichiometric Al0.29Ti0.17Cr0.46Mo0.08N and Al0.38Ti0.27Cr0.30Mo0.05N, respectively.…”

Section: Microstructure Characterization Of the Deposited Coatingsmentioning

confidence: 94%

“…All AlTiN, AlTiCrMoN-1 and AlTiCrMoN-2 coatings consist of cubic B1-NaCl structure and orientations of (111) (200), ( 220) and (311) planes were observed. For the AlTiN coating, the diffraction peak corresponding to the (111) reflection (2θ = 37.1 • ) indicated the existence of an fcc AlTiN solid solution [33][34][35]. The lattice parameter of the AlTiN was 0.419 nm, which was between the values of cubic TiN (0.424 nm, JCPDF file No.…”

Section: Microstructure Characterization Of the Deposited Coatingsmentioning

confidence: 96%

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Deposition of Multicomponent AlTiCrMoN Protective Coatings for Metal Cutting Applications

Chang

Chuang

2020

Coatings

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The high potential of the protective coatings for metal machining applications using the physical vapor deposition (PVD) processes is one to be valued, and will accelerate development of the multicomponent coating design and increase the cutting efficiency. In this study, nanostructured AlTiCrMoN coatings in a multilayered structure were fabricated using cathodic-arc deposition (CAD). Controlling the cathode current of both CrMo and AlTi alloy targets in a nitrogen environment, multilayered AlTiN/CrMoN coatings were deposited. The AlTiN and AlTiN/CrMoN multilayered coatings exhibit a face-centered cubic (fcc) structure with columnar morphologies. The highest hardness of 35.6 ± 1.5 GPa was obtained for the AlTiN coating; however, the H3/E*2 and H/E* values were the lowest (0.124 and 0.059, respectively). The multilayered AlTiN/CrMoN coatings possessed higher H3/E*2 and H/E* values of up to 0.157 and 0.071, respectively. The present study investigated the cutting performance of end mills in the milling of SUS316L stainless steel. The cutting performance was evaluated in terms of cutting length and tool wear. Because of high resistance to adhesive and abrasive wear, the end mills coated with multilayered AlTiN/CrMoN showed less flank wear than monolithic AlTiN. The introduction of CrMoN sublayers improved the cutting tool life of AlTiN.

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Section: Microstructure Characterization Of the Deposited Coatingsmentioning

confidence: 93%

Section: Microstructure Characterization Of the Deposited Coatingsmentioning

confidence: 94%

Section: Microstructure Characterization Of the Deposited Coatingsmentioning

confidence: 96%

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Deposition of Multicomponent AlTiCrMoN Protective Coatings for Metal Cutting Applications

Chang

Chuang

2020

Coatings

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“…The Al atoms substitute Ti atoms in TiN lattice. The lattice distortion leads to the increase of the hardness and thus improve the abrasive wear resistance of TiAlN [13,14]. The (nc-Ti 1−x Al x N)/(α-Si 3 N 4 ) (nACo) coating is the nanocomposite coating of nanocrystalline nc-AlTiN grains embedded into amorphous α-Si 3 N 4 matrix, which results in high hardness and good resistance to abrasive wear.…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Tribological Performance of Hard Multilayer TiN-AlTiN/nACo-CrN/AlCrN-AlCrO-AlTiCrN Coating Deposited on WC-Co Substrate

et al. 2020

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Mechanical and tribological properties of the hard-multilayer TiN-AlTiN/nACo-CrN/AlCrN-AlCrO-AlTiCrN coating deposited on WC-Co substrate were investigated. The sliding tests were carried out using ball-on-disc tribometer at room (25 °C) and high temperatures (600 and 800 °C) with Al2O3 balls as counterpart. Nano-scratch tests were performed at room temperature with a sphero-conical diamond indenter. The surface morphology and chemical composition were investigated with scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS) and in-situ high-temperature X-ray diffraction (HT-XRD). The phase transition from fcc-(Al,Cr)2O3 into α-(Al,Cr)2O3 was observed at about 800 °C. The results of the tribological tests depends on the temperature, the lowest apparent and real wear volumes were observed on the coating after the test at 800 °C along with the smallest coefficient of friction (COF). The plastic deformation of the coating was confirmed in sliding and nano-scratch tests. The nano-scratch tests revealed the dependence of COF value on the temperature of the sliding tests.

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“…Nanocomposite coatings such as Ti-Si-N [11] and superlattice coatings such as TiAlN/CrN exhibit superior hardness and chemical stability [12−14] . Chang et al reported that TiAlN/CrN multilayer films exhibited a maximum hardness of 36 GPa, steady-state friction coefficient in the range of 0.45-0.50 against WC-Co ball and, after oxidation at 1000 o C, AlTiN/CrN films still retained their crystal structure [15,16] .…”

Section: Introductionmentioning

confidence: 99%

Structure and Mechanical Properties of CrTiAlN/TiAlN Composite Coatings Deposited by Multi-Arc Ion Plating

Yan

Tian

Huang

et al. 2014

Plasma Sci. Technol.

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CrTiAlN/TiAlN composite coatings were deposited on cemented carbide by using a home-made industrial scale multi-arc ion plating system. The samples were studied by X-ray diffraction, scanning electron microscopy (SEM), microhardness and ball-on-disk testing. The properties of the CrTiAlN/TiAlN coatings were significantly influenced by the microstructure and the deposition time ratio of TiAlN over CrTiAlN layers. With the increase of deposition time ratio, the microhardness of CrTiAlN/TiAlN increased from 28.6 GPa to 37.5 GPa, much higher than that of CrTiAlN coatings. The friction coefficients of the CrTiAlN/TiAlN coatings were higher than those of CrTiAlN coatings against a cemented carbide ball. The microhardness of the CrTiAlN/TiAlN coatings was changed after annealing at 800°C, and the friction coefficients of the annealed coatings were increased against the cemented carbide ball.

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High temperature oxidation resistance of multilayered AlxTi1−xN/CrN coatings

Cited by 11 publications

References 37 publications

Deposition of Multicomponent AlTiCrMoN Protective Coatings for Metal Cutting Applications

Deposition of Multicomponent AlTiCrMoN Protective Coatings for Metal Cutting Applications

High-Temperature Tribological Performance of Hard Multilayer TiN-AlTiN/nACo-CrN/AlCrN-AlCrO-AlTiCrN Coating Deposited on WC-Co Substrate

Structure and Mechanical Properties of CrTiAlN/TiAlN Composite Coatings Deposited by Multi-Arc Ion Plating

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