| Issue |
Matériaux & Techniques
Volume 75, Number 10-11, 1987
|
|
|---|---|---|
| Page(s) | 433 - 437 | |
| DOI | https://doi.org/10.1051/mattech/198775100433 | |
| Published online | 19 April 2017 | |
Étude du comportement électrochimique de diverses brasures dans l’eau
Sélection de brasures représentativesà l’aide de méthodes statistiques multidimensionnelles
Study of brazings electrochemical behaviour in water
1 Laboratoire de physico-chimie industrielle INSA, Villeurbanne.
2 Laboratoire de chimie organique physique, Université de Lyon I.
...
Abstract
One of the major problems encountered in the building trade is that of the corrosion of copper domestic water supply pipes. In particular the corrosion encountered at brazed joints : galvanic corrosion between the brazing and the copper.
This galvanic corrosion depends on the composition of the brazing, but also on other parameters : quality of the water, temperature, flow velocity.
By application of multivariate statistical analysis (principal components analysis and factor analysis plan in 2n) four brazings which have a different electrochemical behaviour in the chosen experimental conditions (soft - hard water, 20-60°C, flow velocity 0-1,5 m/s) were selected from 14 brazings.
© SIRPE 1987
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