Friction and wear behavior of Al 2 O 3 /TiB 2 composite against cemented carbide in various atmospheres at elevated temperature

Wear ◽  
1996 ◽  
Vol 195 (1-2) ◽  
pp. 128-132 ◽  
Author(s):  
Deng Jianxin ◽  
Ai Xing ◽  
Li Zhaoqian
2014 ◽  
Vol 56 (3) ◽  
pp. 435-442 ◽  
Author(s):  
Yu Lei ◽  
Qingsen Meng ◽  
Lei Zhuang ◽  
Shaoping Chen ◽  
Lifang Hu ◽  
...  

2011 ◽  
Vol 480-481 ◽  
pp. 36-41
Author(s):  
Feng Xia ◽  
Jian Ping Li ◽  
Gao Hong Li ◽  
Man Zhu ◽  
Yan Feng Liang

In this paper, equilibrium phase diagram in Al-15Si-xCu system piston alloys was calculated using “Pandat” software. The influence of Cu content on the friction and wear behavior of Al-15Si piston alloys at elevated temperature was investigated by the combination use of optical microscopy (OM) and scanning electron microscopy (SEM). Experimental results showed that the abrasive and wear weight and the friction factor in the T6-treated piston alloys were reduced with the increase of Cu content. The friction and wear properties differ slightly in the piston alloys containing 4.5% and 5.5%Cu, which is related to the high thermally stable precipitates, i.e., Q-phase, ε-phase, and θ-phase. For the piston alloys containing low Cu content, the wear mechanism belongs to adhesive wear, while abrasive particle wear is responsible for the high Cu content piston alloys.


2011 ◽  
Vol 199-200 ◽  
pp. 646-650 ◽  
Author(s):  
Hui Zhang ◽  
Jian Xin Deng ◽  
Ze Wu ◽  
Xing Ai ◽  
Jun Zhao

The friction and wear behavior of cutting tool materials keeps an issue. In this study, an high temperature tribometre (UMT-2) was used to investigated the tribology properties and mechanism of two kinds of typical cutting tool materials. Commonly used cemented carbide (ZU5) and ceramic (AT) were chosen. The characteristics as to wear rate, friction coefficient and worn surface were studied. From the results, we found that the ceramic had better wear resistance than the cemented carbide. The friction coefficient of cemented carbide decreased with the increase of ambient temperature while the ceramic exhibited an inverse tendency. Finally, the probable wear mechanism was discussed.


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