Properties and performance of commercial TiCN coatings. Part 1: coating architecture and hardness modelling

Bull, Steve; Bhat, Deepak; Staia, M.H.

doi:10.1016/s0257-8972(02)00650-3

Cited by 98 publications

(36 citation statements)

References 14 publications

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“…The thickness of the coating was 2.51 µm and the average value of the indentation microhardness H IT was 54 GPa. It is higher than when it is measured for this type of coating, but it depends on the C:N ratio during the deposition process [36]. The adhesion of the TiCN-MP coating to the substrate (hardened tool steel 1.3343) measured by the Scatch test has been shown to be very good.…”

Section: Disscusionmentioning

confidence: 67%

Surface Analysis of Uncoated and PVD Coated Punch at the Hole-Flanging Process

Tomáš

Džupon

Evin

et al. 2018

Metals

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This paper researches the surface condition and wear on the hole-flanging punch when producing a flanged Ø7 mm hole in a steel strip S355J2 + N (1.0577) with a thickness of 3 mm. The hole was flanged by a punch with a defined geometry known as a tangent ogive and described via a caliber radius head (CRH) ratio. During the process, wear of the punch made of hardened tool steel 1.3343 appeared after 20,000 strokes. Thus, a multipurpose coating TiCN-MP deposited via Lateral Rotating Arc-Cathode technology was applied on the punch to extend the punch lifetime. The coated punch was polished to remove droplets after deposition process. By applying TiCN-MP coating, 120,000 strokes were applied to reach the same wear as for the uncoated tool steel. The surface of the punch made of the hardened tool steel for uncoated and PVD coated conditions was researched by scanning electron microscopy after wear, and an energy dispersive X-ray (EDX) analysis was done to identify components of bonded material. In addition, the normal pressure on the punch active surface was studied via a numerical simulation of the hole-flanging process. The position of the high normal pressure is well correlated to the position of the adhesive wear for the uncoated and coated punches.

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Section: Disscusionmentioning

confidence: 67%

Surface Analysis of Uncoated and PVD Coated Punch at the Hole-Flanging Process

Tomáš

Džupon

Evin

et al. 2018

Metals

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“…Pei et al [38] also reported that the hardness of a nc-TiC/a-C:H coating without bias during deposition is about 5.5GPa which is similar to our result. The ceramic sublayers, TiCN and TiN, normally possess higher hardness ([20 GPa) and elastic modulus ([350 GPa) [39][40][41][42][43], which were significantly higher than the carbon coating. The M2 high-speed steel substrate also possesses higher hardness (9.9 ± 1.1 GPa) and lower elastic modulus (222.2 ± 12.8 GPa) than the carbon coating.…”

Section: Discussionmentioning

confidence: 99%

Low Temperature Nano-Tribological Study on a Functionally Graded Tribological Coating Using Nanoscratch Tests

et al. 2011

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Previous studies on low temperature tribological investigations were limited to macro-scale studies because of the lack of suitable instrumentation. This limitation has been overcome using a newly developed low temperature nanoscratch tester capable of characterizing the scratch resistance of coatings down to -30°C. The scratch resistance and mechanical properties of a functionally graded a-C:H(Ti)/ TiCN/TiN/Ti coating have been investigated for temperatures ranging from 25 to -30°C. It has been found that the a-C:H(Ti)/TiCN/TiN/Ti coating failed at high loads by cracking and spallation during the room-temperature scratch tests. Fractography suggests that these failures originate from or close to the interface between the top a-C:H(Ti) and the TiCN layers. Decreasing the test temperature from 25 to 0°C resulted in increased values in H, H/E r and H 3 /E r 2 , consistent with improved crack-and wear resistances, with further smaller improvements being achieved on further decreasing the temperature to -30°C.

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“…Hard coatings are used in a variety of applications due to their improved hardness, lower friction coefficient, and corrosion resistance compared to typical steels [49][50][51]. Common coatings include TiN, CrN, TiCN, TiAlN.…”

Section: Coatingsmentioning

confidence: 99%

A review of the effect of metals on the thermo-oxidative stability of perfluoropolyalkylether lubricants

Hellman

Gschwender

Snyder

2006

J. Synthetic Lubrication

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The structural attributes and degradation mechanisms are reviewed for Fomblin Z®, Demnum , and space applications such as in satellites [4]. The backbone of the molecule contains only single bonds which allow free rotation of the backbone atoms producing a fluid with excellent viscosity characteristics. The high temperature oxidative stability is partly due to their high molecular weight and the shielding effect the highly electro-negative fluorine atoms have on protecting the carbon/oxygen backbone [5]. Comparing hydrocarbon chemistry in oxidative environments, hydrocarbons have the tendency to form water and OH radicals via a free radical process. This situation does not apply to perfluorinated compounds due to the resistance of the C-F bond to the attack by free radicals and the thermodynamic instability of OF 2 and OF species [6,7]. This renders PFPAEs JOURNAL OF SYNTHETIC LUBRICATION

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Properties and performance of commercial TiCN coatings. Part 1: coating architecture and hardness modelling

Cited by 98 publications

References 14 publications

Surface Analysis of Uncoated and PVD Coated Punch at the Hole-Flanging Process

Surface Analysis of Uncoated and PVD Coated Punch at the Hole-Flanging Process

Low Temperature Nano-Tribological Study on a Functionally Graded Tribological Coating Using Nanoscratch Tests

A review of the effect of metals on the thermo-oxidative stability of perfluoropolyalkylether lubricants

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