Sliding wear, slurry erosive wear and corrosive wear behavior of aluminium/SiC composite

• Autorzy: Ramachandra M. , Radhakrishna K.
• Języki publikacji: EN

Abstrakty

EN

In this study, an aluminium based metal matrix was reinforced with silicon carbide (SiC) particulates using a conventional casting technique, Vortex method. Macro and microstructural studies conducted on the samples revealed a near uniform distribution of SiC particulates. Sliding wear, slurry erosive wear and corrosive wear of the as cast metal matrix composite (MMC) were studied and found that sliding wear and slurry erosive wear resistance improved considerably with the addition of SiC. Whereas corrosion resistance has decreased with addition of SiC particles. The microscopic examination of the worn surfaces, wear debris and subsurface shows that the base alloy wears primarily because of micro cutting. But the MMC's wear because of micro cutting, oxidation, plastic deformation and thermal softening. In slurry erosive wear the formation of passive layer has retarded the wear of the material. It is observed that pitting corrosion was the dominant corrosion mechanism. The bulk hardness has increased with the increase in percentage of SiC particulates. There was no much change in the density of MMC's compared to base metal.

Słowa kluczowe

EN

metal matrix composite; MMC; Al-based MMC; SiC; mechanical properties; wear; corrosion

PL

kompozyt o osnowie metalicznej; osnowa aluminiowa; zużycie; korozja

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2006
• Tom: Vol. 24, No. 2/1
• Strony: 333--349
• Opis fizyczny: Bibliogr. 26 poz.

Twórcy

autor

Ramachandra M.

autor

Radhakrishna K.

• Department of Manufacturing Engineering, BMS College of Engineering, Bangalore 560 019, Karnataka, India.,

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