Elastic-Plastic Properties of hard Cr-Based Nitride Coatings Deposited at Temperatures Below 200°C

Vassiliy Chitanov; Ekaterina Zlatareva; Lilyana Kolaklieva; Roumen Kakanakov; Tetiana Cholakova; Stefan Kolchev; Chavdar Pashinski

doi:10.24874/ti.1460.03.23.05

Tribology in Industry (Jun 2023)

Elastic-Plastic Properties of hard Cr-Based Nitride Coatings Deposited at Temperatures Below 200°C

Vassiliy Chitanov,
Ekaterina Zlatareva,
Lilyana Kolaklieva,
Roumen Kakanakov,
Tetiana Cholakova,
Stefan Kolchev,
Chavdar Pashinski

Affiliations

Vassiliy Chitanov: ORCiD; Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, Bld. Sankt Petersburg, 61, 4000 Plovdiv, Bulgaria
Ekaterina Zlatareva: ORCiD; Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, Bld. Sankt Petersburg, 61, 4000 Plovdiv, Bulgaria
Lilyana Kolaklieva: ORCiD; Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, Bld. Sankt Petersburg, 61, 4000 Plovdiv, Bulgaria
Roumen Kakanakov: ORCiD; Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, Bld. Sankt Petersburg, 61, 4000 Plovdiv, Bulgaria
Tetiana Cholakova: ORCiD; Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, Bld. Sankt Petersburg, 61, 4000 Plovdiv, Bulgaria
Stefan Kolchev: ORCiD; Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, Bld. Sankt Petersburg, 61, 4000 Plovdiv, Bulgaria
Chavdar Pashinski: ORCiD; Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, Bld. Sankt Petersburg, 61, 4000 Plovdiv, Bulgaria; Department of Mechanics, Technical University - Sofia, Br. Plovdiv, Tsanko Diustabanov St. 25, 4000 Plovdiv, Bulgaria

DOI: https://doi.org/10.24874/ti.1460.03.23.05
Journal volume & issue: Vol. 45, no. 2
pp. 340 – 350

Abstract

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Sets of Cr-based hard coatings were prepared via reactive closed field unbalanced magnetron sputtering (CFUBMS). Substrate temperature was kept in range of 150 to 200°C during deposition. Nanohardness (H) and effective modulus of elasticity (E*) of the coatings were examined, using depth-sensing indentation method. In order to present the mechanical properties and predict the tribological behaviour of the prepared coatings ratios H/E* (elasticity index), H3/E*2 (resistance to plastic deformation) and 1/(HE*2) (resistance to crack formation) were calculated and analysed. The results from the combined examination of the research ratios showed that they could be used for classification of the expected wear-resistant properties of Cr-based hard coatings deposited at temperature below 200°C.

Published in Tribology in Industry

ISSN: 0354-8996 (Print); 2217-7965 (Online)
Publisher: University of Kragujevac
Country of publisher: Serbia
LCC subjects: Technology: Mechanical engineering and machinery
Website: http://www.tribology.fink.rs/

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