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Study of mechanical and tribological properties of a TiCrAlN hard coating deposited by closed field unbalanced magnetron sputtering

by Chitanov, V , Faik, D , Kakanakov, R , Cholakova, T , Kolaklieva, L , Zlatareva, E , Kolchev, S , Čekada, M , Pashinski, C

in Coating / Corundum / Hard surfacing / Low temperature / Magnetron sputtering / Mechanical properties / Morphology / Plasticity index / Scratching / Strain / Tribology / Wear resistance / Wear tests

2026

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Study of mechanical and tribological properties of a TiCrAlN hard coating deposited by closed field unbalanced magnetron sputtering

by Chitanov, V , Faik, D , Kakanakov, R , Cholakova, T , Kolaklieva, L , Zlatareva, E , Kolchev, S , Čekada, M , Pashinski, C

2026

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Study of mechanical and tribological properties of a TiCrAlN hard coating deposited by closed field unbalanced magnetron sputtering

by Chitanov, V , Faik, D , Kakanakov, R , Cholakova, T , Kolaklieva, L , Zlatareva, E , Kolchev, S , Čekada, M , Pashinski, C

2026

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Journal Article

Study of mechanical and tribological properties of a TiCrAlN hard coating deposited by closed field unbalanced magnetron sputtering

Chitanov, V,

Faik, D,

Kakanakov, R,

Cholakova, T,

Kolaklieva, L,

Zlatareva, E,

Kolchev, S,

Čekada, M,

Pashinski, C

2026

Overview

This study presents the results of an investigation of the morphology, mechanical and tribological properties of a TiCrAlN multicomponent coating. The coating was obtained by a low-temperature unbalanced magnetron sputtering technology. The developed coating possesses a high hardness of 30.5 GPa and improved elasticity of 366 GPa, indicating a good elastic strain to failure ratio (H/E), and the plasticity index (H 3 /E 2 ) of 0.083 and 0.212, respectively. The surface morphology is characterized by tightly packed uniformly distributed grains, which results in low roughness of 90 nm. The smooth surface and improved mechanical properties ensure enhanced tribological characteristics. A low scratching coefficient 0.105 against a diamond indenter and COF of 0.22 against a corundum counter body were measured. The TiCrAlN multicomponent coating demonstrates improved wear resistance, as a wear coefficient of 4.75x10 −7 mm 3 /Nm was determined during the wear tests.

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Publisher

IOP Publishing

Subject

/ Magnetron sputtering

/ Mechanical properties

/ Morphology