ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Al alloy reinforced with SiCp (size: 70-220μm) was fabricated by pressureless-infiltration. Itswear resistant property was investigated under different heat-treatment conditions, and morphology ofworn surface was examined. The results showed that the composite was integrated, uniform and compact,and its wear resistant property was better than that of the unreinforced matrix alloy. It was indicated thatsome rigid SiCp in the abraded surface of the composite could support part of loads and replace matrix towear-tear, which improved the wear resistant property. Compared to annealing, solution agingstrengthens Al alloy matrix and cohesion with SiCp, and the wear resistant property of composites wasbetter. Combining interface is also an important factor which influences on wear resistant property.During the wear test, the smaller SiCp size, the more interfaces, there are more SiCp falling off because ofloosening combining interface, which results in more wear-tearing value. The wear rate of compositeincreases with decreasing SiCp size, thus, the composite with larger SiCp has better wear-resistantproperty than that with smaller SiCp. At last, the wear mechanism of the composite was also studied, andit showed that abrasive wear dominated in the abrasion process
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.1096.pdf
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