Microstructure and wear behavior of spark plasma sintering sintered Al2O3/WC-based composite

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 Al2O...

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Bibliographic Details
Published in:International journal of refractory metals & hard materials 2016-01, Vol.54, p.279-283
Main Authors: Chen, Wei-Hsio, Lin, Hao-Tung, Chen, Jianmin, Nayak, Pramoda K., Lee, Alex C., Lu, Horng-Hwa, Huang, Jow-Lay
Format: Article
Language:English
Subjects:
Aluminum oxide
Composites
Cracks
Plastic deformation
Spark plasma sintering
Toughness
Tungsten carbide
Wear
Wear behavior
Wear rate
Wear tests
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Summary: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.
ISSN:0263-4368
2213-3917
DOI:10.1016/j.ijrmhm.2015.07.030