In a humid tropical atmosphere, different corrosive media, to which a metal is exposed in working conditions and given the chemical, the rate of corrosion of the metal is not the same. In this sense, the objective of this study was to analyse the corrosion rate by analysing photographic images from welded metal-exposed to eight (8) different liquids environments with potential corrosive. The paper shows some numerical calculations based on changes in shades of grey or darkened images. This photograph was taken through a camera of 12.1 MP (Lumix Panasonic model FP1) of the metal samples surfaces immersed in various media for certain periods of time. Subsequently, each of the images obtained were edited to standard size 2000x2000 pixels (Microsoft® Office 2010) and brought into a grid (Scale 1:1 cm) in AutoCAD® 2008 wherein the surface was interpreted as a dark area of corrosion and its value determined. Finally it is concluded that the analysis of photographic images constitutes a basic tool for determining corrosion rate. In this study, the metals in contact with tap water from the public network presented a corrosion rate of 83.09r20.57mm2 * h-1
Other ID | JA56KN45FZ |
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Journal Section | Articles |
Authors | |
Publication Date | July 23, 2016 |
Published in Issue | Year 2013 Volume: 3 Issue: 3 |