scholarly journals Quantitative correlations between wear behavior of Ti1-xAlxN coating, structural transformations of the substrate WC-Co and coating itself during cathodic arc evaporation

2020 ◽  
Vol 329 ◽  
pp. 02028
Author(s):  
Anna Kameneva ◽  
Natalia Kameneva ◽  
Vadim Karmanov

The temperature ranges of structural transformations in WC-Co and Ti1-xAlxNin the process of cathode-arc evaporation are analyzed. The limiting values of the WC-Co temperature before the deposition of the coating correspond to 773 ... 873 K, after which the hardness of WC-Co and, as a consequence, the hardness of the composition WC-Co / Ti1-xAlx deteriorates. Analysis of the coating structural transformations made it possible to establish the structuring stages of the Ti1-xAlx coating during its deposition. Wear test was carried out for Ti1-xAlx coatings formed at each structuring stage. Wear test were carried out according to the finger-disk scheme at 300 K in coolant-cutting fluid on a laboratory friction machine. The wear behavior of the Ti1-xAlx coating are unstable at 773 K, then improve at 773 ... 853 K, stabilize with an increase in temperature to 963 K. The nanostructured Ti1-xAlx coating formed in the temperature range T sub/T m = 0.18... 0.23have the best complex of wear properties in comparison with analogues.

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Lorenzo Montesano ◽  
Annalisa Pola ◽  
Marcello Gelfi ◽  
Giovina Marina La Vecchia

A microblasting treatment carried out on CrN coated samples was studied to investigate the induced effect on corrosion and wear resistance. CrN coating was deposited through Cathodic Arc Evaporation technique on quenched and tempered steel. The properties of the coating were studied by hardness measurements, scratch, potentiodynamic, and pin-on-disk tests. The results show that microblasting reduces the corrosion resistance while improving the wear behavior.


2020 ◽  
Vol 329 ◽  
pp. 02029
Author(s):  
Anna Kameneva ◽  
Vadim Karmanov ◽  
Sergey Stepanov ◽  
Darya Kameneva

In this paper, TiN, ZrN, TixZr1-xN, Ti1-xAlxN coatings were obtained by cathodic arc evaporation at optimal technological parameters. The corrosion properties of these coatings were investigated in 5% NaOH. The coating ZrN deposited by cathodic arc evaporation slows down the corrosion in the 5% NaOH by over 3,000 times, and the passive current – by 2,000 times. The TixZr1-xN coating has the best physico-mechanical properties: microhardness Н = 36 GPa, Young’s modulus Е = 312 GPa, elastic recovery We = 78 %, resistance to elastic failure strain H/E = 0.12, and resistance to plastic strain H3/E2 = 1.31 GPa. The Ti1-xAlxN coating has the best wear properties: friction coefficient 0.09, counterbody wear intensity by volume 0.43•10-8 mm3/Nm, coating wear intensity by volume 0.05•10-4 mm3/Nm and by mass•0.03•10-5 mg/Nm. Multilayer coating TiN-TixZr1-xN-Ti1-xAlxN-ZrN (ZrN-top layer) has a complex of high physico-mechanical and wear properties in 5% NaOH.


2013 ◽  
Vol 577-578 ◽  
pp. 641-644 ◽  
Author(s):  
Lorenzo Montesano ◽  
C. Petrogalli ◽  
A. Pola ◽  
Marcello Gelfi ◽  
V. Sisti ◽  
...  

Corrosion and wear resistance of Cathodic Arc Evaporation (CAE) CrN coatings deposited on a tool steel were investigated considering the effect of the number of layers (mono or double) and the influence of defects. The CrN coatings were characterized for mechanical (scratch, nanoindentation test), corrosion behavior (polarizarion tests) and tribological properties (pin-on-disk tests). Scanning Electron Microscope analyses on samples before and after the tests were also made in order to identify the type of the defects and the role they play in the coating damage. Monolayer coating shows a good wear behavior with a stable and low friction coefficient, but its corrosion performance is poor. On the contrary, the presence of an interface into the double layer improves the corrosion resistance, but it is a weak point for the coating delamination during wear tests.


2011 ◽  
Vol 205 (21-22) ◽  
pp. 5116-5123 ◽  
Author(s):  
David Rafaja ◽  
Conrad Polzer ◽  
Gerhard Schreiber ◽  
Peter Polcik ◽  
Martin Kathrein

2005 ◽  
Vol 46 (6) ◽  
pp. 1417-1424 ◽  
Author(s):  
Cheng-Hsun Hsu ◽  
Jung-Kai Lu ◽  
Kuei-Liang Lai ◽  
Ming-Li Chen

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