Title of article
Deformation mechanisms operating during nanoindentation of TiN coatings on steel substrates
Author/Authors
Ma، نويسنده , , L.W. and Cairney، نويسنده , , J.M. and Hoffman، نويسنده , , P. R. Warman and M. D. Munroe ، نويسنده , , P.R.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
8
From page
11
To page
18
Abstract
The deformation mechanisms operating during nanoindentation of TiN coatings on steel substrates were investigated using FIB cross-sectioning and imaging, as well as cross-sectional transmission electron microscopy of the indented region. Two coatings were investigated: a relatively thick (3.7 μm) coating deposited using a low voltage electron beam system, and a thinner (0.7 μm) coating deposited using a cathodic arc process. Load displacement data from nanoindentation displayed clear pop-ins as the load increased. Cracks were observed at the boundaries between the columnar grains, and steps were observed at the coating/substrate interface. A comparison of the load displacement data and the microscopic observations indicated that deformation occurs primarily by shear sliding along the columnar grain boundaries.
Keywords
Titanium nitride , TEM , Nanoindentation , FIB
Journal title
Surface and Coatings Technology
Serial Year
2005
Journal title
Surface and Coatings Technology
Record number
1809138
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