The Effect of Li Additions on Wear Properties of Al-Mg2Si Cast In-situ Composites
Abstract
Wear rate of a modified Al-Mg2Si composite was studied by the use of a conventional pin-on-disc technique. In-situ Al-Mg2Si composites (15, 20, 25 wt.%) were cast in a simple cylindrical mold. 0.3 wt.% Li was added into the molten composite to modify its microstructure. It has been found that Li addition decreases the mean size of primary Mg2Si particles. The wear behavior of different composites at different rates revealed that Li addition increases the wear properties of Al-15%Mg2Si to some extent but it did not have any significant influence on wear properties of two other composites.
- Publication:
-
NUMIFORM 2010
- Pub Date:
- June 2010
- DOI:
- 10.1063/1.3457494
- Bibcode:
- 2010AIPC.1252.1018G
- Keywords:
-
- wear resistance;
- alloys;
- scanning electron microscopes;
- carbon fibre reinforced composites;
- phase diagrams;
- 81.40.Pq;
- 81.05.Bx;
- 68.37.Hk;
- 81.05.Qk;
- 81.30.Bx;
- Friction lubrication and wear;
- Metals semimetals and alloys;
- Scanning electron microscopy;
- Reinforced polymers and polymer-based composites;
- Phase diagrams of metals and alloys