TEM Analysis of Wear of Ti/TiN Multi-Layer Coating in Ball-on-Disc Test

Łukasz Major; Jerzy Morgiel

doi:10.4028/www.scientific.net/KEM.409.123

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 409TEM Analysis of Wear of Ti/TiN Multi-Layer Coating...

TEM Analysis of Wear of Ti/TiN Multi-Layer Coating in Ball-on-Disc Test

Abstract:

The wear mechanisms of Ti/TiN eight layered coatings ( =250nm) were investigated with ball-on-disc test. The coatings were obtained by hybrid pulsed laser deposition (PLD) technique. The wear test was done using Al2O3 ball-on-disc test at 1N/2000 cycles. Thin foils for TEM observations were cut from wear track using a Quanta 200 3D FIB (Focus Ion Beam) equipped with an Omniprobe lift-up system. The microstructure investigations were performed with the TECNAI G2 SuperTWIN FEG (200kV) transmission electron microscope. At the start of the wear the load applied to Al2O3 ball resulted in pushing-in of the coating into substrate causing its grooving of the shape corresponding to the ball diameter. The lining of the crater required strong coating deformation, which was plastic within Ti and mostly brittle in TiN layers. The vertical cracks in TiN were indeed stopped at the TiN/Ti interfaces, but reopen in lying below TiN layers. In applied wear conditions the continuity of Ti layers prevails over cracking of the TiN layers and resulted in layer-by-layer wear of investigated multilayer coating.

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Periodical:

Key Engineering Materials (Volume 409)

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123-127

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https://doi.org/10.4028/www.scientific.net/KEM.409.123

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Online since:

March 2009

Authors:

Łukasz Major, Jerzy Morgiel

Keywords:

Ball-on-Disc Test, TEM, Ti/TiN Multilayer Coating, Wear

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References

[1] K. Ichijo, H. Hasegawa and T. Suzuki: Surf. Coat. Technol. Vol. 201 (2007), p.5477.

Google Scholar

[2] P.C. Jindal, A.T. Santhanam, U. Schleinkofer and A.F. Shuster: Int. J. Refract. Met. Hard Mater. Vol. 17 (1999), p.163.

Google Scholar

[3] Li Chen, S.Q. Wang, S.Z. Zhou, Jia Li and Y.Z. Zhang: Int. J. Refract. Met. Hard Mater. Vol. 26 (2008), p.456.

Google Scholar

[4] M. Bromark, M. Larsson, P. Hedenqvist and S. Hogmark: Surf. Coat. Technol. Vol. 90 (1997), p.217.

Google Scholar

[5] E. Martinez, J. Romero, A. Lousa and J. Esteve: Surf. Coat. Technol. Vol. 163 -164 (2003), p.571.

Google Scholar

[6] Ł. Major, J. Morgiel, M. Kot and J.M. Lackner: TEM and HRTEM Characterization of TiN coatings Damage During Ball-on-Disc Test, submitted to J. Electron Microscopy.

Google Scholar

[7] Ph. Steyer, A. Mege, D. Pech, C. Mendibide, J. Fontaine, J. -F. Pierson, C. Esnouf and P. Goudeau: Surf. Coat. Technol. Vol. 202 (2008), p.2268.

DOI: 10.1016/j.surfcoat.2007.08.073

Google Scholar

[8] J.M. Lackner; Industrially- scaled hybrid Pulsed Laser Deposition at Room Temperature; published by Orekop, Kraków (2005).

Google Scholar

[9] R. Major, J. Bonarski, J. Morgiel, B. Major, E. Czarnowska, R. Kustosz, J.M. Lackner and W. Waldhauser: Surf. Coat. Technol. Vol. 200 (2006), p.6340. ~72o.

DOI: 10.1016/j.surfcoat.2005.11.003

Google Scholar