Structural characterisation of oxygen diffusion hardened alpha-tantalum PVD-coatings on titanium

C. Hertl; L. Koll; T. Schmitz; E. Werner; U. Gbureck

doi:10.1016/j.msec.2014.03.018

Structural characterisation of oxygen diffusion hardened alpha-tantalum PVD-coatings on titanium

C. Hertl, L. Koll, T. Schmitz, E. Werner, U. Gbureck

Chair of Materials Science

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Titanium substrates were coated with tantalum layers of 5 μm thickness using physical vapour deposition (PVD). The tantalum layers showed a (110)-preferred orientation. The coated samples were hardened by oxygen diffusion. Using X-ray diffraction the crystallographic structure of the tantalum coatings was characterised, comparing untreated and diffusion hardened specimen conditions. Oxygen depth profiles were determined by glow discharge spectrometry. The hardening effect of the heat treatment was examined by Vickers microhardness testing. The increase of surface hardness caused by oxygen diffusion was at least 50%.

Original language	English
Pages (from-to)	28-35
Number of pages	8
Journal	Materials Science and Engineering C
Volume	41
DOIs	https://doi.org/10.1016/j.msec.2014.03.018
State	Published - 1 Aug 2014

Keywords

Diffusion
Magnetron sputtering
Metal surface treatment
Oxidation
Physical vapour deposition
Surface hardening
Titanium

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10.1016/j.msec.2014.03.018

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title = "Structural characterisation of oxygen diffusion hardened alpha-tantalum PVD-coatings on titanium",

abstract = "Titanium substrates were coated with tantalum layers of 5 μm thickness using physical vapour deposition (PVD). The tantalum layers showed a (110)-preferred orientation. The coated samples were hardened by oxygen diffusion. Using X-ray diffraction the crystallographic structure of the tantalum coatings was characterised, comparing untreated and diffusion hardened specimen conditions. Oxygen depth profiles were determined by glow discharge spectrometry. The hardening effect of the heat treatment was examined by Vickers microhardness testing. The increase of surface hardness caused by oxygen diffusion was at least 50%.",

keywords = "Diffusion, Magnetron sputtering, Metal surface treatment, Oxidation, Physical vapour deposition, Surface hardening, Titanium",

author = "C. Hertl and L. Koll and T. Schmitz and E. Werner and U. Gbureck",

note = "Funding Information: The authors thank the Deutsche Forschungsgemeinschaft DFG for the financial support within projects GB 1/13-1 and WE 2351/12-1 as well as for the partial financing of the field emission scanning electron microscope JEOL JSM 7600F. ",

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AU - Hertl, C.

AU - Koll, L.

AU - Schmitz, T.

AU - Werner, E.

AU - Gbureck, U.

N1 - Funding Information: The authors thank the Deutsche Forschungsgemeinschaft DFG for the financial support within projects GB 1/13-1 and WE 2351/12-1 as well as for the partial financing of the field emission scanning electron microscope JEOL JSM 7600F.

PY - 2014/8/1

Y1 - 2014/8/1

N2 - Titanium substrates were coated with tantalum layers of 5 μm thickness using physical vapour deposition (PVD). The tantalum layers showed a (110)-preferred orientation. The coated samples were hardened by oxygen diffusion. Using X-ray diffraction the crystallographic structure of the tantalum coatings was characterised, comparing untreated and diffusion hardened specimen conditions. Oxygen depth profiles were determined by glow discharge spectrometry. The hardening effect of the heat treatment was examined by Vickers microhardness testing. The increase of surface hardness caused by oxygen diffusion was at least 50%.

AB - Titanium substrates were coated with tantalum layers of 5 μm thickness using physical vapour deposition (PVD). The tantalum layers showed a (110)-preferred orientation. The coated samples were hardened by oxygen diffusion. Using X-ray diffraction the crystallographic structure of the tantalum coatings was characterised, comparing untreated and diffusion hardened specimen conditions. Oxygen depth profiles were determined by glow discharge spectrometry. The hardening effect of the heat treatment was examined by Vickers microhardness testing. The increase of surface hardness caused by oxygen diffusion was at least 50%.

KW - Diffusion

KW - Magnetron sputtering

KW - Metal surface treatment

KW - Oxidation

KW - Physical vapour deposition

KW - Surface hardening

KW - Titanium

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U2 - 10.1016/j.msec.2014.03.018

DO - 10.1016/j.msec.2014.03.018

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SN - 0928-4931

VL - 41

SP - 28

EP - 35

JO - Materials Science and Engineering C

JF - Materials Science and Engineering C

ER -

Structural characterisation of oxygen diffusion hardened alpha-tantalum PVD-coatings on titanium

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