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Title: Deep Rolling of Titanium Rods for Application in Total Hip Arthroplasty
Author: Eigenmann, Holzwarth, Kachler, Göske, Wilcke, Schu
Source: Conf Proc: ICSP-9 (pg 314-319)
Publication year 2005
Document number: 2005103
Number of pages: 6
Abstract:
ABSTRACT
Compressive residual stresses are commonly introduced into the near-surface regions of morse taper junctions of modular hip endoprostheses in order to reduce the sensitivity
to effects of corrosion, fretting fatigue, and fatigue.
The aim of this study is to evaluate the effects of deep rolling rods of titanium alloy TiAl6Nb7 and evaluate the resulting surface characteristics in comparison with those
obtained by commonly applied shot peening procedures.
For this purpose, TiAl6Nb7 rods with a diameter of 15 mm were deep rolled with balls of different diameters and different rolling parameters. The resulting surface
topography and residual contamination was analyzed using a field emission scanning electron microscope. The near-surface residual stress states after deep rolling were
characterized by means of X-ray diffraction. The findings are discussed with respect to application of deep rolling as finishing process of morse taper junctions of modular
hip endoprostheses.
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