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Corrosion Resistance of 2014 Aluminium Matrix Composites Reinforced with Atomised Ni3Al

Corrosion Resistance of 2014 Aluminium Matrix Composites Reinforced with Atomised Ni3Al The corrosion resistance of 2014 aluminium matrix composites has been evaluated. The base alloy was manufactured through mechanical alloying, and reinforced with Ni3Al (manufactured through atomisation). Composite materials were manufactured according to the following procedure: mixing, cold uniaxial compacting, and hot extrusion. All materials were tested as extruded and heat treated (T6 condition). Corrosion tests were carried out following ASTM standard methods G69 (measurement of corrosion potentials) and G110 (evaluation of intergranular corrosion). The influence that the intermetallic and T6 heat treatment have on the corrosion resistance of 2014 aluminium alloy has been studied. Results show that atomised Ni3Al improves the intergranular corrosion resistance of base aluminium by a mechanism of cathodic protection. T6 heat treatment is also favourable. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Performance Materials Springer Journals

Corrosion Resistance of 2014 Aluminium Matrix Composites Reinforced with Atomised Ni3Al

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References (3)

Publisher
Springer Journals
Copyright
Copyright © 1999 by Kluwer Academic Publishers
Subject
Engineering; Automotive Engineering; Characterization and Evaluation of Materials; Classical Mechanics; Metallic Materials
ISSN
0929-1881
eISSN
1572-8765
DOI
10.1023/A:1008713425137
Publisher site
See Article on Publisher Site

Abstract

The corrosion resistance of 2014 aluminium matrix composites has been evaluated. The base alloy was manufactured through mechanical alloying, and reinforced with Ni3Al (manufactured through atomisation). Composite materials were manufactured according to the following procedure: mixing, cold uniaxial compacting, and hot extrusion. All materials were tested as extruded and heat treated (T6 condition). Corrosion tests were carried out following ASTM standard methods G69 (measurement of corrosion potentials) and G110 (evaluation of intergranular corrosion). The influence that the intermetallic and T6 heat treatment have on the corrosion resistance of 2014 aluminium alloy has been studied. Results show that atomised Ni3Al improves the intergranular corrosion resistance of base aluminium by a mechanism of cathodic protection. T6 heat treatment is also favourable.

Journal

Advanced Performance MaterialsSpringer Journals

Published: Oct 1, 2004

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