Mechanical and tribological features of TaN(Ag-Cu) duplex nanocomposite coatings: their response to heat treatment

ABSTRACT: AISI 420 martensitic stainless steel samples and silicon (100) were coated with tantalum nitride doped with copper and silver nanoparticles TaN(Ag-Cu) to improve their hardness and wear resistance. The coatings were deposited by unbalanced DC Magnetron Sputtering technique, using a tantalu...

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Autores principales:	Echavarría,Aída M., Bejarano G.,Gilberto, Meza,J.M.
Lenguaje:	English
Publicado:	Universidad de Tarapacá. 2017
Materias:	AISI 420 magnetron sputtering silver and cooper nanoparticles tantalum nitride tribological properties
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052017000400662
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spelling	oai:scielo:S0718-330520170004006622018-01-02Mechanical and tribological features of TaN(Ag-Cu) duplex nanocomposite coatings: their response to heat treatmentEchavarría,Aída M.Bejarano G.,GilbertoMeza,J.M. AISI 420 magnetron sputtering silver and cooper nanoparticles tantalum nitride tribological properties ABSTRACT: AISI 420 martensitic stainless steel samples and silicon (100) were coated with tantalum nitride doped with copper and silver nanoparticles TaN(Ag-Cu) to improve their hardness and wear resistance. The coatings were deposited by unbalanced DC Magnetron Sputtering technique, using a tantalum target and other silver/copper composite target (50/50%at), confronted each other. The coated samples were subjected to an appropriate heat treatment at 250 °C for 8 minutes to achieve a controlled diffusion of Ag-Cu nanoparticles to the TaN(Ag-Cu) surface. Due to their mechanical and tribological properties depend, not only on the content of Ag-Cu, but also on the size, shape and density of nanoparticles of Ag-Cu on the surface of the coating. The influence of the Ag-Cu content on the microstructure and mechanical and tribological properties of the composite coating were evaluated before and after the heat treatment was evaluated. In general terms, the microhardness and wear rate increased initially with Ag-Cu content, but then dropped down for contents higher to 0.71% at, exhibiting the lubricating effect of Ag-Cu nanoparticles in the compound before and after heat treatment. The heat treated C3 sample showed a microhardness of 15 GPa, very superior to the hardness of AISI 420 stainless steel, as well as a wear rate six orders of magnitude lower than the steel.info:eu-repo/semantics/openAccessUniversidad de Tarapacá.Ingeniare. Revista chilena de ingeniería v.25 n.4 20172017-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052017000400662en10.4067/S0718-33052017000400662
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	AISI 420 magnetron sputtering silver and cooper nanoparticles tantalum nitride tribological properties
spellingShingle	AISI 420 magnetron sputtering silver and cooper nanoparticles tantalum nitride tribological properties Echavarría,Aída M. Bejarano G.,Gilberto Meza,J.M. Mechanical and tribological features of TaN(Ag-Cu) duplex nanocomposite coatings: their response to heat treatment
description	ABSTRACT: AISI 420 martensitic stainless steel samples and silicon (100) were coated with tantalum nitride doped with copper and silver nanoparticles TaN(Ag-Cu) to improve their hardness and wear resistance. The coatings were deposited by unbalanced DC Magnetron Sputtering technique, using a tantalum target and other silver/copper composite target (50/50%at), confronted each other. The coated samples were subjected to an appropriate heat treatment at 250 °C for 8 minutes to achieve a controlled diffusion of Ag-Cu nanoparticles to the TaN(Ag-Cu) surface. Due to their mechanical and tribological properties depend, not only on the content of Ag-Cu, but also on the size, shape and density of nanoparticles of Ag-Cu on the surface of the coating. The influence of the Ag-Cu content on the microstructure and mechanical and tribological properties of the composite coating were evaluated before and after the heat treatment was evaluated. In general terms, the microhardness and wear rate increased initially with Ag-Cu content, but then dropped down for contents higher to 0.71% at, exhibiting the lubricating effect of Ag-Cu nanoparticles in the compound before and after heat treatment. The heat treated C3 sample showed a microhardness of 15 GPa, very superior to the hardness of AISI 420 stainless steel, as well as a wear rate six orders of magnitude lower than the steel.
author	Echavarría,Aída M. Bejarano G.,Gilberto Meza,J.M.
author_facet	Echavarría,Aída M. Bejarano G.,Gilberto Meza,J.M.
author_sort	Echavarría,Aída M.
title	Mechanical and tribological features of TaN(Ag-Cu) duplex nanocomposite coatings: their response to heat treatment
title_short	Mechanical and tribological features of TaN(Ag-Cu) duplex nanocomposite coatings: their response to heat treatment
title_full	Mechanical and tribological features of TaN(Ag-Cu) duplex nanocomposite coatings: their response to heat treatment
title_fullStr	Mechanical and tribological features of TaN(Ag-Cu) duplex nanocomposite coatings: their response to heat treatment
title_full_unstemmed	Mechanical and tribological features of TaN(Ag-Cu) duplex nanocomposite coatings: their response to heat treatment
title_sort	mechanical and tribological features of tan(ag-cu) duplex nanocomposite coatings: their response to heat treatment
publisher	Universidad de Tarapacá.
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052017000400662
work_keys_str_mv	AT echavarriaaidam mechanicalandtribologicalfeaturesoftanagcuduplexnanocompositecoatingstheirresponsetoheattreatment AT bejaranoggilberto mechanicalandtribologicalfeaturesoftanagcuduplexnanocompositecoatingstheirresponsetoheattreatment AT mezajm mechanicalandtribologicalfeaturesoftanagcuduplexnanocompositecoatingstheirresponsetoheattreatment
_version_	1714203451509964800

Mechanical and tribological features of TaN(Ag-Cu) duplex nanocomposite coatings: their response to heat treatment

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