Effect of W particles on the properties of accumulatively roll-bonded Al/W composites

In the present study, aluminum metal matrix composites reinforced with pure tungsten particulates are manufactured through warm accumulative roll bonding (ARB). X-ray diffraction analysis reveals no Al-W intermetallics in the composites. The microstructure of the composites shows excellent W particle distribution in the matrixes. Tensile, hardness, and electrical conductance properties of the composites are determined. The results show that the introduction of 4.2 vol% W particles to Al matrix via ARB process leads to significantly enhanced mechanical properties and excellent electrical conductivity.