CrAlN coatings deposited by cathodic arc evaporation at different substrate bias

Romero, Juan A.; Botero, Maryory Astrid Gómez; Esteve, J.; Montalá, F.; Carreras, L.; Grifol, M.; Lousa, A.

doi:10.1016/j.tsf.2006.01.061

Cited by 98 publications

(62 citation statements)

References 14 publications

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“…Mikrotwardość wyznaczano dla głębokości wnikania wgłębnika w powłokę równą 0,3 μm. Przed pomiarami zastosowano procedurę przygotowania powierzchni próbek opisaną w pracy [4].…”

Section: Część Doświadczalnaunclassified

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Selected mechanical properties of AlCrN coatings deposited using cathodic arc evaporation method

et al. 2016

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Section: Część Doświadczalnaunclassified

“…Zastosowanie wyższego napięcia polaryzacji podłoża powoduje zmniejszanie grubości powłoki. Wyniki te są zgodne z danymi prezentowanymi w pracy [4].…”

Section: Wyniki Badań I Dyskusjaunclassified

Selected mechanical properties of AlCrN coatings deposited using cathodic arc evaporation method

et al. 2016

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“…Owing to excellent oxidation resistance as well as good chemical stability, mechanical and tribological properties, the researches are particularly attracted by TiAlN and CrAlN materials [11,[13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of TiAlN and CrAlN Coatings Deposited on Sialon Ceramic Cutting Inserts by Physical Vapor Deposition

Liu¹,

Ma²,

Du³

2017

dtetr

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Abstract. TiAlN and CrAlN coatings were prepared by physical vapor deposition (PVD) on Sialon ceramic cutting tools. The results illustrated that the surface morphology of TiAlN coating was smoother than that of CrAlN coating. The thickness of TiAlN coating was about 1 µm, which was thicker than that of CrAlN coating (about 0.5µm). However, the hardness of TiAlN coating was lower (30.1 GPa) than that of CrAlN coating (37.5 GPa). Also the elastic modulus of TiAlN coating (346.9 GPa) was also lower than that of CrAlN coating (430.7 GPa), indicating that the stiffness of CrAlN coating was better than that of TiAlN coating. According to scratch tests, the adhesion force of TiAlN and CrAlN coatings were 31 N and 45 N, respectively, which revealed that the CrAlN coating exhibited better adhesion than the TiAlN coating. Cutting performance of the TiAlN coated and CrAlN coated Sialon ceramic cutting inserts were investigated by turning nickel-based alloys under dry conditions. For comparison, uncoated Sialon ceramic cutting inserts were also used for turning tests under the same conditions. The results indicated that the cutting performance of the inserts was considerably improved by the TiAlN and CrAlN coatings on the surfaces. The dominant failure mechanisms of the CrAlN coated inserts were abrasive and adhesive wear, whereas adhesive wear and spalling were the main failure mechanisms of the TiAlN coated inserts. The service life of TiAlN and CrAlN coated inserts were much longer than that of the uncoated inserts, indicating that the two coatings could effectively protect the inserts from wear.

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“…[1][2][3][4] For such kinds of materials, numerous works focus on how to obtain good mechanical properties by optimizing experimental parameters, such as bias voltage and gas flow ratio. [5][6][7][8][9] In fact, the microstructure of thin films determines their mechanical properties. Therefore, analysis of microstructure contributes to having a better understanding of the mechanical properties of thin films.…”

Section: Introductionmentioning

confidence: 99%

Atomic-scale microstructure underneath nanoindentation in Al-Cr-N ceramic films

Lin

2015

AIP Advances

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In this work, Al-Cr-N ceramic films deformed by nanoindentation were peeled off from silicon substrates and their atomic-scale microstructures underneath the indenter were investigated by high resolution transmission electron microscope (HR-TEM). Dislocations were formed underneath the indenter and they accumulated along nano-grain boundaries. The accumulative dislocations triggered the crack initiation along grain boundaries, and further resulted in the crack propagation. Dislocations were also observed in nano-grains on the lateral contact area. A model was proposed to describe the variation of microstructures under nanoindentation.

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CrAlN coatings deposited by cathodic arc evaporation at different substrate bias

Cited by 98 publications

References 14 publications

Selected mechanical properties of AlCrN coatings deposited using cathodic arc evaporation method

Selected mechanical properties of AlCrN coatings deposited using cathodic arc evaporation method

A Comparative Study of TiAlN and CrAlN Coatings Deposited on Sialon Ceramic Cutting Inserts by Physical Vapor Deposition

Atomic-scale microstructure underneath nanoindentation in Al-Cr-N ceramic films

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