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Effects of Carbon Source on TiC Particles’ Distribution, Tensile, and Abrasive Wear Properties of In Situ TiC/Al-Cu Nanocomposites Prepared in the Al-Ti-C System

by Yu-Yang Gao 1,2, Feng Qiu 1,2,3,*, Tian-Shu Liu 1,2, Jian-Ge Chu 1,2, Qing-Long Zhao 1,2 and Qi-Chuan Jiang 1,2,*
1
State Key Laboratory of Automotive Simulation and Control, Jilin University, No. 5988, Renmin Street, Changchun 130025, China
2
Key Laboratory of Automobile Materials, Ministry of Education and Department of Materials Science and Engineering, Jilin University, No. 5988, Renmin Street, Changchun 130025, China
3
Qingdao Automotive Research Institute of Jilin University, No. 1, Loushan Road, Qingdao 266000, China
*
Authors to whom correspondence should be addressed.
Nanomaterials 2018, 8(8), 610; https://doi.org/10.3390/nano8080610
Received: 15 July 2018 / Revised: 3 August 2018 / Accepted: 3 August 2018 / Published: 10 August 2018
The in situ TiC/Al-Cu nanocomposites were fabricated in the Al-Ti-C reaction systems with various carbon sources by the combined method of combustion synthesis, hot pressing, and hot extrusion. The carbon sources used in this paper were the pure C black, hybrid carbon source (50 wt.% C black + 50 wt.% CNTs) and pure CNTs. The average sizes of nano-TiC particles range from 67 nm to 239 nm. The TiC/Al-Cu nanocomposites fabricated by the hybrid carbon source showed more homogenously distributed nano-TiC particles, higher tensile strength and hardness, and better abrasive wear resistance than those of the nanocomposites fabricated by pure C black and pure CNTs. As the nano-TiC particles content increased, the tensile strength, hardness, and the abrasive wear resistance of the nanocomposites increased. The 30 vol.% TiC/Al-Cu nanocomposite fabricated by the hybrid carbon source showed the highest yield strength (531 MPa), tensile strength (656 MPa), hardness (331.2 HV), and the best abrasive wear resistance. View Full-Text
Keywords: in situ nano-TiC; Al matrix nanocomposites; tensile properties; abrasive wear behaviors in situ nano-TiC; Al matrix nanocomposites; tensile properties; abrasive wear behaviors
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Gao, Y.-Y.; Qiu, F.; Liu, T.-S.; Chu, J.-G.; Zhao, Q.-L.; Jiang, Q.-C. Effects of Carbon Source on TiC Particles’ Distribution, Tensile, and Abrasive Wear Properties of In Situ TiC/Al-Cu Nanocomposites Prepared in the Al-Ti-C System. Nanomaterials 2018, 8, 610.

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