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  4. Aluminium alloys exposed to borderline solutions - A methodology to evaluate the susceptibility to corrosion fatigue with respect to corrosive de-icers
 
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2011
Journal Article
Title

Aluminium alloys exposed to borderline solutions - A methodology to evaluate the susceptibility to corrosion fatigue with respect to corrosive de-icers

Other Title
Methode zur Evaluierung des Schwingungsrisskorrosionsverhaltens von Aluminiumlegierungen beim Einwirken von Streusalzen
Abstract
In addition to high mechanical loads certain components for the automotive industry are exposed to corrosive environments, especially during winter, when corrosion promoting de-icers are essential to sustain road traffic. The underlying research work contributes to the evaluation of the corrosion fatigue performance of aluminium alloys relevant for automotive application generally, while the present text focuses on wrought alloys. Aluminium alloys are of special interest because of the opportunity to reduce expenses for an additional corrosion protection and to support lightweight construction of vehicles. Components exposed to simultaneous mechanical and corrosive service loads as well as corrosion tests of different scale level (immersion and cabinet testing, long term outdoor exposure of components, usage on test carriers) were analysed to evaluate typical forms of corrosion. Based upon the prevailing damaging mechanism of material conditions with known differences i n susceptibility to specific forms of corrosion, like intergranular corrosion or pitting, methods were derived to evolve service relevant types of corrosion during laboratory tests.
Author(s)
Troßmann, T.
TU Darmstadt
Yu, L.
TU Darmstadt
Barton, Bastian  
TU Darmstadt
Kaufmann, Heinz  
Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF  
Grimm, J.
TU Darmstadt
Journal
Materialwissenschaft und Werkstofftechnik  
DOI
10.1002/mawe.201100870
Language
English
Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF  
Keyword(s)
  • de-icer

  • intergranular corrosion

  • corrosion fatigue

  • aluminium

  • pitting

  • pitting corrosion

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