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Cutting tools performance enhancement by using a TiN/TiAlN multilayer coating system

Bejarano Gaitan, G. and Cesar Caicedo, J. and Balogh, Adam G. and Gottschalk, S. (2007):
Cutting tools performance enhancement by using a TiN/TiAlN multilayer coating system.
In: Physica status solidi / C, 4 (11), WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, pp. 4260-4266, [Article]

Abstract

TiN and TiAlN monolayer as well as TiN/AlTiN multilayer were deposited by d.c. reactive magnetron sputtering using titanium and aluminum targets with 10 cm in diameter and 99.99% purity in an argon/nitrogen atmosphere, applying a substrate temperature of 300 °C and a pressure of 7 mbar. Silicon (100) and steel AISI M2 were utilized as substrate. The influence of aluminum content on the properties of TiAlN coatings was first investigated, afterwards the mechanical and tribological properties behavior of TiN/AlTiN coating were analyzed as function of multilayer number. For this purpose, the coatings chemical composition was determined by EDX spectroscopy, the crystalline structure through X-ray diffractometry and its morphology using scanning electron microscopy. Hardness and adherence were determined by means of nanoindentation and scratch techniques respectively. Hardness increased from 18.9 GPa for 51%Al content in the TiAlN films up to 23.9 GPa for 66.7% Al.

Item Type: Article
Erschienen: 2007
Creators: Bejarano Gaitan, G. and Cesar Caicedo, J. and Balogh, Adam G. and Gottschalk, S.
Title: Cutting tools performance enhancement by using a TiN/TiAlN multilayer coating system
Language: English
Abstract:

TiN and TiAlN monolayer as well as TiN/AlTiN multilayer were deposited by d.c. reactive magnetron sputtering using titanium and aluminum targets with 10 cm in diameter and 99.99% purity in an argon/nitrogen atmosphere, applying a substrate temperature of 300 °C and a pressure of 7 mbar. Silicon (100) and steel AISI M2 were utilized as substrate. The influence of aluminum content on the properties of TiAlN coatings was first investigated, afterwards the mechanical and tribological properties behavior of TiN/AlTiN coating were analyzed as function of multilayer number. For this purpose, the coatings chemical composition was determined by EDX spectroscopy, the crystalline structure through X-ray diffractometry and its morphology using scanning electron microscopy. Hardness and adherence were determined by means of nanoindentation and scratch techniques respectively. Hardness increased from 18.9 GPa for 51%Al content in the TiAlN films up to 23.9 GPa for 66.7% Al.

Journal or Publication Title: Physica status solidi / C
Volume: 4
Number: 11
Publisher: WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Uncontrolled Keywords: 62.20.Qp; 68.55.−a; 68.60.Bs; 68.65.Ac; 81.15.Cd; 81.65.Lp
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Material Analytics
Date Deposited: 20 Nov 2008 08:26
Funders: Funded by Technological Development Center ASTIN-SENA, Funded by Cali Colombia, Funded by Institute of Materials Science, Darmstadt University of Technology, Germany
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