Study through Potentiodynamic Techniques of the Corrosion Resistance of Different Aluminium base MMC's with Boron Additions
Articles
Overview
published in
publication date
- June 2010
start page
- 203
end page
- 208
volume
- 660-661
Digital Object Identifier (DOI)
International Standard Serial Number (ISSN)
- 0255-5476
Electronic International Standard Serial Number (EISSN)
- 1662-9752
abstract
-
This paper compares wrought aluminium with PM aluminum and PM aluminium alloys with boron-base additions, containing boron carbide and Fe/B (obtained by mechanical alloying during 36 hours from a Fe-B 50% mixture
by weight). The effect of sintering temperature for the Fe/B containing
material and the effect of mechanical alloying for the boron carbide
containing aluminium alloy on the corrosion resistance of those
materials have been studied. Their behavior is followed through cyclic
anodic polarization curves in chloride media. In the Al+20%Fe/B
composite, low sintering temperatures (650-950ºC) exert a negative
effect. However, when the material was sintered at high temperature
(1000-1100ºC) its behaviour was very similar to the PM pure aluminium.
The effect of mechanical alloying studied in aluminium with boron
carbide was also important in corrosion resistance, finding a lower
corrosion rate in the mechanically alloyed material.