期刊
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
卷 9, 期 1, 页码 641-653出版社
ELSEVIER
DOI: 10.1016/j.jmrt.2019.11.005
关键词
Nanocomposites; Nano-sized TiC particles; Nacre-like structures; Wear resistance
资金
- National Natural Science Foundation of China (NNSFC) [51790483, 51971101]
- Science and Technology Development Program of Jilin Province, China [20190302004GX]
- Source Innovation Plan of Qingdao City, China [18-2-2-1-jch]
- College Student Innovation Plan of Jilin University [2018A1603]
In situ TiC/Al-Cu-3.7 -Mg-1.3 nanocomposites containing 5-20 vol. % nano-TiC with nacre-like structures were prepared via combustion synthesis and hot pressing assisted by hot extrusion. Dry sliding friction and wear tests of the prepared in situ TiC/Al-Cu-3.7-Mg-1.3 nanocomposites and Al-Cu-3.7-Mg-1.3 alloy was carried out by a pin-on-disc apparatus under various applied loads and at different sliding velocities at room temperature. The nanocomposites showed much better friction and wear performance than the Al-Cu-3.7-Mg-1.3 alloy. SEM and EDS analyses were conducted to identify the wear mechanisms. The enhanced wear resistance of the nanocomposites was attributed to the formation of a protective mechanically mixed layer reinforced by nano-TiC particles. (C) 2019 The Authors. Published by Elsevier B.V.
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