Title of article
Fatigue behavior of PVD coated Ti–6Al–4V alloy
Author/Authors
M.Y.P. Costa، نويسنده , , M.L.R. Venditti، نويسنده , , M.O.H. Cioffi، نويسنده , , H.J.C. Voorwald، نويسنده , , V.A. Guimar?es، نويسنده , , R. Ruas، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
7
From page
759
To page
765
Abstract
The aim of the present work is to identify an environmentally clean coating process that will present lower influence in the Ti–6Al–4V fatigue strength. Axial fatigue tests of Ti–6Al–4V alloy TiN, CrN and WC:H (tungsten containing diamond-like carbon) Physical Vapor Deposition (PVD) coated was evaluated. Decrease in fatigue life was observed for coated specimens in comparison to base metal. Scanning Electron Microscopy technique was used to observe crack origin sites and coating thickness. DLC coating provides higher Ti–6Al–4V alloy PVD coated fatigue strength due to lower defects presence and the chromium interlayer, which acts as a barrier to fatigue crack propagation.
Keywords
Fatigue strength , Titanium alloys , PVD coatings
Journal title
INTERNATIONAL JOURNAL OF FATIGUE
Serial Year
2011
Journal title
INTERNATIONAL JOURNAL OF FATIGUE
Record number
1162277
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