Relationship between thermal and sliding wear behavior of Al6061/Al 2 O 3 metal matrix composites

Serdar Osman Yılmaz, Soner Buytoz

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Al6061 alloy and Al6061/Al 2 O 3 metal matrix composites (MMCs) were fabricated by stir casting. The MMCs were prepared by addition of 5, 10 and 15 wt% Al 2 O 3 particulates and the size of particulates was taken as 16 μm. The effect of Al 2 O 3 particulate content, thermal properties and stir casting parameters on the dry sliding wear resistance of MMCs were investigated under 50-350 N loads. The dry sliding wear tests were performed to investigate the wear behavior of MMCs against a steel counterface (DIN 5401) in a block-on-ring apparatus. The wear tests were carried out in an incremental manner, i.e., 300 m per increment and 3,000 m in total. It was observed that, the increase in Al 2 O 3 vol% decreased both thermal conductivity and friction coefficient and hence increased the transition load and transition temperature for mild to severe wear during dry sliding wear test.

Original languageEnglish
Pages (from-to)4485-4493
Number of pages9
JournalJournal of Materials Science
Volume42
Issue number12
DOIs
StatePublished - Jun 2007
Externally publishedYes

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