Enhancing mechanical properties and cutting performance of industrially sputtered AlCrN coatings by inducing cathodic arc glow discharge

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F21%3A00545220" target="_blank" >RIV/68081731:_____/21:00545220 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/21:00122195

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0257897221007374?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0257897221007374?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.surfcoat.2021.127563" target="_blank" >10.1016/j.surfcoat.2021.127563</a>

Result language

angličtina

Original language name

Enhancing mechanical properties and cutting performance of industrially sputtered AlCrN coatings by inducing cathodic arc glow discharge

Original language description

The average ion energy per deposited atom (E-d) is defined as the product of the ion energy (E-i) and ion-deposition flux ratio (J(i)/J(d)) in magnetron sputtering deposition. E-d captures both the geometrical, and plasma characteristics of the deposition system and hence is regarded as a fundamental parameter for describing the energy dependency of coating structure and properties. Nevertheless, E-d is not a universal parameter since an independent variation of its components, i.e., E-i and J(i)/J(d), may result in the same E-d but different coating structures and properties. While the controlling of J(i)/J(d) is not possible in most conventional magnetron sputtering systems, this study employed an industrially developed SCIL (R) (sputter coatings induced by lateral glow discharge) technology to independently control the ion flux (J(i)) and investigate the dependence of structure, mechanical properties, and cutting performance of the AlCrN coatings on the E-d and its components. The results revealed that the structure of the AlCrN coatings was mainly dependent on the J(i)/J(d) component of E-d, where a transition from a cubic structure into a hexagonal structure took place beyond a critical level of J(i)/J(d). The elastic modulus showed no E-d dependency and was only affected by coating structure. However, the hardness was strongly dependent on the E-d. Whether in E-i or J(i)/J(d), an increase led to a hardness enhancement through the synergic effect of the residual stress hardening, coating densification, and grain refining mechanisms. The cutting performance of deposited tools under real working conditions was also found to be dependent on the E-d and, in particular, on J(i)/J(d). Increasing E-d from similar to 860 to similar to 1170 eV/atom led to a similar to 55% increase in tool lifetime, reaching 90% performance of the benchmark arc-deposited coating.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20506 - Coating and films

Project

<a href="/en/project/LM2018097" target="_blank" >LM2018097: R&D centre for plasma and nanotechnology surface modifications</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Surface and Coatings Technology

ISSN

0257-8972

e-ISSN

—

Volume of the periodical

422

Issue of the periodical within the volume

25 September 2021

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

127563

UT code for WoS article

000685607200067

EID of the result in the Scopus database

2-s2.0-85111587122