Oxidation resistance of magnetron-sputtered CrAlN coatings on 430 steel at 800 °C

Kayani, A.; Buchanan, T.L.; Kopczyk, M.; Collins, C.; Lucas, J.; Lund, Kasey R.; Hutchison, R; Gannon, Paul; Deibert, Max C.; Smith, Richard J.; Choi, Deuk-Soo; Gorokhovsky, V.

doi:10.1016/j.surfcoat.2006.08.049

Cited by 35 publications

(18 citation statements)

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“…AleCreN coating is one of the most popular and universally used protective layers in machining applications due to its excellent tribological property as well as outstanding resistance to oxidation and corrosion [1,2]. The most significant advantage of Cr 1Àx Al x N coatings is their excellent oxidation resistance, which is related to the formation of dense and adherent (Al, Cr) 2 O 3 mixed oxide scale during exposure to air at elevated temperature [3,4]. The thermal stability of protective coatings counts for as much as their mechanical properties and oxidation resistance in machining applications [5,6].…”

mentioning

confidence: 99%

Influence of Ti on the mechanical properties, thermal stability and oxidation resistance of Al–Cr–N coatings

Chen

Liu

et al. 2015

Vacuum

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confidence: 99%

Influence of Ti on the mechanical properties, thermal stability and oxidation resistance of Al–Cr–N coatings

Chen

Liu

et al. 2015

Vacuum

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“…4) There are many reports on the effects of Al and nitrogen content on the thermal stability of CrAlN films with fccCrAlN structure. [14][15][16][17][18] Thus, it is known that the high oxidation resistance of CrAlN films contributes to the formation of a dense mixed oxide layer of Cr 2 O 3 and Al 2 O 3 at the surface. This prevents further diffusion of oxygen into the film's bulk.…”

Section: Introductionmentioning

confidence: 99%

“…This prevents further diffusion of oxygen into the film's bulk. 15) On the other hand, Reiter et al examined the thermal stability of CrAlN films with different Al contents and reported the best thermal stability for the films with the hcp structure. 9) In our previous article we reported formation of nanostructured CrAlN films with mixed structures of hcp-AlN and hcp-Cr 2 N phases from a Cr/Al (¼ 50=50 (at%)) alloy target which showed some typical mechanical properties of nanocomposite films.…”

Section: Introductionmentioning

confidence: 99%

Oxidation Resistance of CrAlN Films with Different Microstructures Prepared by Pulsed DC Balanced Magnetron Sputtering System

et al. 2010

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CrAlN films were prepared using a pulsed DC balanced reactive sputtering system under different N 2 /Ar ratios and pulse widths. We investigated the oxidation resistance of two CrAlN films with different microstructures; i) with a fcc-CrN structure, lower internal stress and moderate hardness, and ii) with a mixed structure of hcp-AlN and hcp-Cr 2 N phases, higher internal stress and super high hardness of 41 GPa. The CrAlN film (i) having the single fcc-CrN structure showed good oxidation resistance up to 900 C. The plastic hardness of this film increased to a maximum of 38.5 GPa at 900 C. In contrast, the CrAlN film (ii) with the mixed structure of hcp-AlN and hcp-Cr 2 N phases was stable up to 800 C. The plastic hardness of this film decreased gradually with annealing.

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“…Many researchers have investigated the oxidation of CrAlN coatings [19][20][21][22]. But almost all the oxidation experiments reported are conducted below 900°C.…”

Section: Introductionmentioning

confidence: 99%

“…Banakh et al [19] demonstrated that a low Al concentration (<20 at.%) actually accelerated the oxidation process. However, Kayani et al [20] indicated that Al-rich coatings are more susceptible to oxidation than Cr-rich coatings and Cr/Al ratio of 0.9 offered the best resistant to oxidation. Kawate et al [21] and Sáchez-lópez et al [22] demonstrated that the CrAlN coatings had excellent resistance to oxidation.…”

Section: Introductionmentioning

confidence: 99%

Oxidation Resistance of a Cr0.50Al0.50N Coating Prepared by Magnetron Sputtering on Alloy K38G

Yin

et al. 2007

Oxid Met

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A Cr 0.50 Al 0.50 N coating has been prepared by a reactive-magnetronsputtering method on alloy K38G. The coating possesses mainly the B1 type with a small amount of B4-type crystal structure phase. Isothermal oxidation tests were performed at 900-1,100°C for 20 h by thermogravimetric analysis (TGA) in air. The results reveal that the coated samples have much lower mass gain than that of the bare alloy. The parabolic rate constants of the coated samples decrease by 2 orders of magnitude compared with the bare alloy at 1,000 and 1,100°C. During the oxidation of the coated samples below 1,000°C, the main oxide is Cr 2 O 3 , but above 1,000°C, the scale changes to a-Al 2 O 3 . The observed oxidation behaviors demonstrate that the Cr 0.50 Al 0.50 N coating can provide good protection against corrosion over a wide temperature range.

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Oxidation resistance of magnetron-sputtered CrAlN coatings on 430 steel at 800 °C

Cited by 35 publications

References 10 publications

Influence of Ti on the mechanical properties, thermal stability and oxidation resistance of Al–Cr–N coatings

Influence of Ti on the mechanical properties, thermal stability and oxidation resistance of Al–Cr–N coatings

Oxidation Resistance of CrAlN Films with Different Microstructures Prepared by Pulsed DC Balanced Magnetron Sputtering System

Oxidation Resistance of a Cr0.50Al0.50N Coating Prepared by Magnetron Sputtering on Alloy K38G

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