Journal
MATERIALS & DESIGN
Volume 32, Issue 10, Pages 4999-5003Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2011.06.045
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Funding
- Committee of High Technology Research and Development Program of China [2007AA03Z508]
- Shanghai Maritime University Foundation [20100071]
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In this work, Mo was investigated as an additive for in situ preparation of TiC/Al composite using a casting route assisted by self-propagating high-temperature synthesis (SHS). Experimental results show Mo improves the wettability between TiC phase and aluminium melt due to the formation of a Mo-rich shell around the formed TiC particles, which is a kind of good modificator. Compared with the composite without added Mo, 1.0 wt.% Mo addition developed finer matrix structure, significant refinement of TiC particles and more uniform distribution of TIC particles in the matrix. Meanwhile, both wear and tensile properties of TiC/Al composite were improved with 1.0 wt.% Mo addition and then deteriorated with the further increase of Mo content due to the formation of fragile phase Al(5)Mo. (C) 2011 Elsevier Ltd. All rights reserved.
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