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Author Pul, Muharr em ♦ Çalin, Recep ♦ Gül, Ferhat
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ ABRASION ♦ ALUMINIUM ♦ ALUMINIUM OXIDES ♦ COMPOSITE MATERIALS ♦ CONCENTRATION RATIO ♦ FRACTURE PROPERTIES ♦ HARDNESS ♦ MAGNESIUM OXIDES ♦ MATRIX MATERIALS ♦ MICROSTRUCTURE ♦ POROSITY ♦ REINFORCED MATERIALS ♦ SCANNING ELECTRON MICROSCOPY ♦ SURFACES ♦ WEAR
Abstract In this study, the effects of reinforcement volume fractions on abrasive wear behavior were examined in Al–MgO reinforced metal matrix composites of 5%, 10% and 15% reinforcement – volume ratios produced by melt-stirring. Abrasive wear tests were carried out by 60, 80 and 100 mesh sized Al{sub 2}O{sub 3} abrasive papers and pin-on-disc wear test apparatus under 10, 20 and 30 N loads at 0.2 m/s sliding speed. The mechanical properties such as hardness and fracture strength were determined. Subsequent to the wear tests, the microstructures of worn surfaces were examined by scanning electron microscope analyses. While increased MgO reinforcement volume fraction in the composite resulted increased hardness, fracture strength was determined to decrease. Additionally, it was found that increased MgO reinforcement volume fraction in the composite was accompanied with increased wear loss and porosity as well as reinforcement – volume ratio was identified to be significant determinants of abrasive wear behavior.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2014-12-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 60


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