Sökning: WFRF:(Hudson T) >
Structural and mech...
Structural and mechanical properties of Cr-Al-O-N thin films grown by cathodic arc deposition
-
- Khatibi, Ali (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
-
- Sjolen, J. (författare)
- SECO Tools AB, Sweden
-
- Greczynski, Grzegorz (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
-
visa fler...
-
- Jensen, Jens (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
-
- Eklund, Per (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
-
- Hultman, Lars (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
-
visa färre...
-
(creator_code:org_t)
- Elsevier, 2012
- 2012
- Engelska.
-
Ingår i: Acta Materialia. - : Elsevier. - 1359-6454 .- 1873-2453. ; 60:19, s. 6494-6507
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Coatings of (CrxAl1-x)(delta)(O1-yNy)(xi) with 0.33 less than= x less than= 0.96, 0 less than= y less than= 1 and 0.63 less than= delta/xi less than= 1.30 were deposited using cathodic arc evaporation in N-2/O-2 reactive gas mixtures on 50 V negatively biased WC-10 wt.% Co substrates from different Cr and Al alloys with three different Cr/Al compositional ratios. For N-2 less than 63% of the total gas, ternary (Cr,Al)(2)O-3 films containing less than1 at.% of N forms; as determined by elastic recoil detection analysis. Increasing the N-2 fraction to 75% and above results in formation of quaternary oxynitride films. Phase analyses of the films by X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy show the predominance of cubic Cr-Al-N and cubic-(Cr,Al)(2)O-3 solid solutions and secondary hexagonal alpha-(Cr,Al)(2)O-3 solid solution. High Cr and Al contents result in films with higher roughness, while high N and O contents result in smoother surfaces. Nanoindentation hardness measurements showed that Al-rich oxide or nitride films have hardness values of 24-28 GPa, whereas the oxynitride films have a hardness of similar to 30 GPa, regardless of the Cr and Al contents. Metal cutting performance tests showed that the good wear properties are mainly correlated to the oxygen-rich coatings, regardless of the cubic or corundum fractions.
Nyckelord
- Physical vapor deposition; Solid solution; Face-centered cubic crystals; Alumina (alpha-Al2O3); Oxynitride
- TECHNOLOGY
- TEKNIKVETENSKAP
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas