Abstract
The Al6061-ZrB2 metal matrix composites were prepared by stir-casting approach via in-situ reaction, using aluminium master alloys comprising 3% Boron and 10% Zirconium. Developed in-situ composites were rolled at a temperature of 400 °C. Both the as-cast and hot-rolled alloys and their in-situ composites were studied for microstructure, friction, and wear properties. The effects of rolling Direction (RD), Transverse Direction (TD), and 45° to rolling directions on the friction and wear behaviour of in-situ MMCs were evaluated. With the addition of ZrB2 particles, the composites demonstrated increased wear resistance and a decreased friction coefficient. In comparison to samples tested in the transverse direction, samples tested in the RD and 45D orientations had the lowest coefficients of friction and wear rates (TD).
Published Version
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