Open AccessDry sliding friction and wear characterization of in situ TiC/Al-Cu3.7-Mg1.3 nanocomposites with nacre-like structures
Author(s) -
Lei Wang,
Bai–Xin Dong,
Feng Qiu,
Run Geng,
Qian Zou,
HongYu Yang,
Qingyuan Li,
Zihan Xu,
Qinglong Zhao,
Qi–Chuan Jiang
Publication year - 2019
Publication title -
journal of materials research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.832
H-Index - 44
eISSN - 2214-0697
pISSN - 2238-7854
DOI - 10.1016/j.jmrt.2019.11.005
Subject(s) - materials science , nanocomposite , alloy , extrusion , in situ , composite material , wear resistance , hot pressing , nano , dry friction , characterization (materials science) , composite number , metallurgy , nanotechnology , physics , meteorology
In situ TiC/Al-Cu3.7-Mg1.3 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-Cu3.7-Mg1.3 nanocomposites and Al-Cu3.7-Mg1.3 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-Cu3.7-Mg1.3 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.
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