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Chen, Wei-Hsio; Lin, Hao-Tung; Chen, Jianmin; Nayak, Pramoda K.; Lee, Alex C.; Lu, Horng-Hwa; Huang, Jow-Lay
International journal of refractory metals & hard materials, 01/2016, Volume: 54Journal Article
Various alumina/tungsten carbide based nanocomposites have been fabricated by spark plasma sintering and their wear properties have been investigated by performing ball-on-disk type wear test at room temperature under ambient environment. Our results reveal that the main facture behavior of the Al2O3/tungsten carbide composites sliding against Al2O3 balls is the plastic deformation. Crack formation and grain pull-out in the wear processes are responsible for lowering the wear rate. The Vickers hardness and toughness values are directly related to wear behavior of the composites that grounds Al2O3/WC to show lower wear rate on smoothly worn surface. •Various alumina/tungsten carbide based nanocomposites have been fabricated by spark plasma sintering.•Crack formation and grain pull-out in the wear processes are responsible for lowering the wear rate.•This study demonstrates a pathway to prepared anti-wear Al2O3/WC composite materials.
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