Journal
CORROSION SCIENCE
Volume 49, Issue 2, Pages 391-401Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2006.04.022
Keywords
aluminium; white light interferometry (WLI); pitting corrosion
Ask authors/readers for more resources
An improved method is described for obtaining detailed information on the size and shape of many corrosion pits by examination with White Light Interferometry. The entire surface is first imaged at low resolution by automatically stitching individual images into one composite image. Specially written software analyses the image and determines the location of all corrosion pits. The program then guides the white light interferometer in making high resolution topographic images of each pit. The images are analyzed to give any desired data about the pit geometry, such as depth, maximum width, projected area, volume, etc. Curves showing the depth distribution for each pit can be generated along with detailed topographic images of all pits. The technique does not work for pits that undercut the surface, and there is a practical size limit of about 20 cm(2) The method is therefore best suited for studying the early stages of pit propagation. (c) 2006 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available