NDLI: Nanostructured wear-resistant coatings based on multicomponent nitrides and produced by vacuum-arc ion-plasma deposition

Content Provider	Springer Nature Link
Author	Blinkov, I. V. Volkhonskii, O. A. Anikin, V. N. Konukhov, Yu. V.
Copyright Year	2012
Abstract	Multicomponent Ti-Cr-Al-N coatings with crystallites from 10 to 100 nm in size are obtained by vacuum-arc ion-plasma deposition. The dependence of the changes in the structure and phase composition of coatings on the parameters of deposition is established. An increase in the electric displacement potential (U $_{b}$) applied to the substrate leads to an occurrence of CrN in the coating in addition to complex nitride (Ti, Cr, Al)N and the TiCrN$_{2}$ phase. When the arc current at the chromium cathode (I $_{Cr}$ = 130 A) and U $_{b}$ are maximal, the second nitride Cr$_{2}$N is produced. The emergence of chromium nitride phases is accompanied by a decrease in the size of crystallites in the coating structure. The values of both the strength of coatings (up to 32 GPa) and the elastic modulus (up to 700 MPa) are determined by the crystallite size and microstrains; the latter occur owing to chemical inhomogeneity and may reach up to 0.74%. The adhesion strength of the coatings is characterized by values on the order of 90 N. Cutting hard-alloy tools with these coatings exhibit high coefficients of resistance during uninterrupted and interrupted cutting of steel 38XHMA, which reach 5.1 and 5.7, respectively.
Starting Page	649
Ending Page	655
Page Count	7
File Format	PDF
ISSN	20702051
Journal	Protection of Metals
Volume Number	48
Issue Number	6
e-ISSN	2070206X
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2012-11-16
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Tribology, Corrosion and Coatings Materials Science Metallic Materials Inorganic Chemistry Industrial Chemistry/Chemical Engineering Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Surfaces, Coatings and Films Materials Chemistry Metals and Alloys

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