TY - JOUR
T1 - Preparation and tribological properties of Zn-Cr2AlC composites
AU - Li, Zhi
AU - Zhao, Wenyue
AU - Miao, Naihua
N1 - Publisher Copyright:
© 2018, Editorial Board of JBUAA. All right reserved.
PY - 2018/4
Y1 - 2018/4
N2 - In order to improve the friction and wear properties of Zn, Cr2AlC ceramic particle reinforced Zn matrix composites were prepared by hot pressing method. The effects of Cr2AlC content on the metallographic structure, Vickers-hardness, relative density and tribological properties of the Zn-based composites were investigated. The results show that the hardness of the composites is improved obviously with the proper increase of Cr2AlC content. When the mass fraction of Cr2AlC reaches 20%, the hardness of the composite is 1.52 times higher than that of pure Zn. The introduced Cr2AlC particles can significantly improve the tribological properties of the composites. The friction coefficient decreases from 0.75 in pure Zn to 0.65 in Zn-20%Cr2AlC, and the wear rate of Zn-30%Cr2AlC is reduced by 80.54% compared to pure Zn. Analysis on the worn surface morphology indicates that the wear mechanism is abrasive wear and delamination wear.
AB - In order to improve the friction and wear properties of Zn, Cr2AlC ceramic particle reinforced Zn matrix composites were prepared by hot pressing method. The effects of Cr2AlC content on the metallographic structure, Vickers-hardness, relative density and tribological properties of the Zn-based composites were investigated. The results show that the hardness of the composites is improved obviously with the proper increase of Cr2AlC content. When the mass fraction of Cr2AlC reaches 20%, the hardness of the composite is 1.52 times higher than that of pure Zn. The introduced Cr2AlC particles can significantly improve the tribological properties of the composites. The friction coefficient decreases from 0.75 in pure Zn to 0.65 in Zn-20%Cr2AlC, and the wear rate of Zn-30%Cr2AlC is reduced by 80.54% compared to pure Zn. Analysis on the worn surface morphology indicates that the wear mechanism is abrasive wear and delamination wear.
KW - CrAlC
KW - Microstructure and morphology
KW - Tribological properties
KW - Vickers-hardness
KW - Zn matrix composites
UR - https://www.scopus.com/pages/publications/85047647443
U2 - 10.13700/j.bh.1001-5965.2017.0298
DO - 10.13700/j.bh.1001-5965.2017.0298
M3 - 文章
AN - SCOPUS:85047647443
SN - 1001-5965
VL - 44
SP - 874
EP - 878
JO - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
JF - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
IS - 4
ER -