Dry sliding wear behaviour of some wrought, rapidly solidified powder metallurgy aluminium alloys

Mariyam Jameelah Ghazali, W. M. Rainforth, H. Jones

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

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 23-140 N and at a fixed sliding speed of 1 m/s. Severe wear was observed for all alloys, with specific wear rates (K′) in the range 0.31 × 10-4 to 4.23 × 10-4 mm3/(N m). Wear was dominated by transfer of Fe from the counterface for all alloys, which resulted in the formation of a mechanically mixed layer (MML). The relationship between alloy composition, deformation below worn surface and wear resistance is discussed.

Original languageEnglish
Pages (from-to)490-500
Number of pages11
JournalWear
Volume259
Issue number1-6
DOIs
Publication statusPublished - Jul 2005
Externally publishedYes

Fingerprint

powder metallurgy
Powder metallurgy
aluminum alloys
sliding
Aluminum alloys
Wear of materials
Surface resistance
Steel
matrices
Chemical analysis
wear resistance
Wear resistance
steels
composite materials
Composite materials

Keywords

  • Depth of deformation
  • Dry sliding
  • Mechanically mixed layer (MML)
  • Wrought aluminium alloy

ASJC Scopus subject areas

  • Engineering(all)
  • Mechanical Engineering
  • Surfaces, Coatings and Films

Cite this

Dry sliding wear behaviour of some wrought, rapidly solidified powder metallurgy aluminium alloys. / Ghazali, Mariyam Jameelah; Rainforth, W. M.; Jones, H.

In: Wear, Vol. 259, No. 1-6, 07.2005, p. 490-500.

Research output: Contribution to journalArticle

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