Wear characteristic of several commercial wrought aluminium alloys against tool steel
Aluminium alloys are increasingly being used in tribological applications, often in composite form, but to date no systematic work has been undertaken on optimising the matrix composition. In particular, it is not clear whether a work-hardened, a precipitation hardened or dispersion hardened matri...
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| Format: | Article |
| Language: | English |
| Published: |
2006
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| Online Access: | http://journalarticle.ukm.my/1445/ http://journalarticle.ukm.my/1445/ http://journalarticle.ukm.my/1445/1/2006-6.pdf |
| Summary: | Aluminium alloys are increasingly being used in tribological applications, often in composite form, but
to date no systematic work has been undertaken on optimising the matrix composition. In particular, it is
not clear whether a work-hardened, a precipitation hardened or dispersion hardened matrix is optimum.
Accordingly, the dry sliding wear behaviour of four aluminium alloys (A2124, A6092 (both precipitation
hardened), A3004 (dispersion hardened) and A5056 (work hardened) was investigated against an M2 steel
counterface in the load range 23-140N and at a fixed sliding speed of 1 ms-1. Severe wear was observed
for all alloys, with domination of transfer of Fe from the counterface for all alloys, which resulted in the
formation of a mechanically mixed layer. The relationship between alloy composition, deformation below
worn surface and wear resistance is discussed |
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