1. Mechanical properties and abrasive wear behaviors of in situ nano-TiCx/Al–Zn–Mg–Cu composites fabricated by combustion synthesis and hot press consolidation.
- Author
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Gao, Yu-Yang, Qiu, Feng, Shu, Shu-Li, Wang, Lei, Chang, Fang, Hu, Wei, Han, Xue, Li, Qiang, and Jiang, Qi-Chuan
- Subjects
ALUMINUM alloys ,FRETTING corrosion ,TITANIUM carbide ,METALLIC composites ,MECHANICAL properties of metals ,SELF-propagating high-temperature synthesis ,HOT pressing - Abstract
The in situ nano-TiC x /Al–Zn–Mg–Cu composites with different TiC x content (20, 25 and 30 vol.%) were successfully fabricated by combustion synthesis and hot press consolidation in Al–Ti–C/CNTs systems. The compressive properties and abrasive wear resistance of the composites improved with the increase in the TiC x content. The transformation of carbon source from pure C black to the mixture of C black and CNTs to pure CNTs in Al–Ti–C/CNTs systems leaded to a significant improvement in the compressive properties and wear resistance of the composites as well as a significant decrease in the average size of TiC x particles. The average size of the nano-TiC x particles in 30 vol.% TiC x /Al–Zn–Mg–Cu composite synthesized by the carbon source of CNTs reached 81 nm, moreover, the yield strength ( σ 0.2 ), the ultimate compression strength ( σ UCS ) and the fracture strain ( ɛ f ) of the composite reached 597 MPa, 882 MPa and 21.7%, respectively. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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