Surface modification for orthopaedic titanium alloy by wide-area electron beam

A. Okada; Y. Uno; K. Uemura; P. Raharjo; J. A. McGeough

doi:10.1243/09544054JEM574

Surface modification for orthopaedic titanium alloy by wide-area electron beam

A. Okada, Y. Uno, K. Uemura, P. Raharjo, J. A. McGeough

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

26 Citations (Scopus)

Abstract

Wide-area electron beam (WAEB) irradiation was proposed as a new surface-finishing process for orthopaedic titanium alloy products. The surface roughness could be reduced from R_z = 10 μm to R_z = 0.7 μm all over the wide circular surface within a diameter of 60 mm in just a few minutes under optimum electron beam conditions. In this paper, the surface structure and the surface characteristics of WAEB-irradiated surface are discussed. The crystal grain size becomes small and the microstructure in the surface vicinity changes under WAEB irradiation. The corrosion resistance and the repellency can be improved simultaneously with the surface smoothing. Therefore, the WAEB irradiation method enables highly efficient surface smoothing and surface modification of orthopaedic titanium alloy.

Original language	English
Pages (from-to)	173-178
Number of pages	6
Journal	Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
Volume	221
Issue number	2
DOIs	https://doi.org/10.1243/09544054JEM574
Publication status	Published - Jul 2 2007

Keywords

Electron beam
Resistance to corrosion
Surface finishing
Surface modification
Titanium alloy

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1243/09544054JEM574

Cite this

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abstract = "Wide-area electron beam (WAEB) irradiation was proposed as a new surface-finishing process for orthopaedic titanium alloy products. The surface roughness could be reduced from Rz = 10 μm to Rz = 0.7 μm all over the wide circular surface within a diameter of 60 mm in just a few minutes under optimum electron beam conditions. In this paper, the surface structure and the surface characteristics of WAEB-irradiated surface are discussed. The crystal grain size becomes small and the microstructure in the surface vicinity changes under WAEB irradiation. The corrosion resistance and the repellency can be improved simultaneously with the surface smoothing. Therefore, the WAEB irradiation method enables highly efficient surface smoothing and surface modification of orthopaedic titanium alloy.",

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AU - Okada, A.

AU - Uno, Y.

AU - Uemura, K.

AU - Raharjo, P.

AU - McGeough, J. A.

PY - 2007/7/2

Y1 - 2007/7/2

N2 - Wide-area electron beam (WAEB) irradiation was proposed as a new surface-finishing process for orthopaedic titanium alloy products. The surface roughness could be reduced from Rz = 10 μm to Rz = 0.7 μm all over the wide circular surface within a diameter of 60 mm in just a few minutes under optimum electron beam conditions. In this paper, the surface structure and the surface characteristics of WAEB-irradiated surface are discussed. The crystal grain size becomes small and the microstructure in the surface vicinity changes under WAEB irradiation. The corrosion resistance and the repellency can be improved simultaneously with the surface smoothing. Therefore, the WAEB irradiation method enables highly efficient surface smoothing and surface modification of orthopaedic titanium alloy.

AB - Wide-area electron beam (WAEB) irradiation was proposed as a new surface-finishing process for orthopaedic titanium alloy products. The surface roughness could be reduced from Rz = 10 μm to Rz = 0.7 μm all over the wide circular surface within a diameter of 60 mm in just a few minutes under optimum electron beam conditions. In this paper, the surface structure and the surface characteristics of WAEB-irradiated surface are discussed. The crystal grain size becomes small and the microstructure in the surface vicinity changes under WAEB irradiation. The corrosion resistance and the repellency can be improved simultaneously with the surface smoothing. Therefore, the WAEB irradiation method enables highly efficient surface smoothing and surface modification of orthopaedic titanium alloy.

KW - Electron beam

KW - Resistance to corrosion

KW - Surface finishing

KW - Surface modification

KW - Titanium alloy

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Surface modification for orthopaedic titanium alloy by wide-area electron beam

Abstract

Keywords

ASJC Scopus subject areas

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