CVD碳粉含量对铜基粉末冶金离合器材料性能的影响

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Abstract The cutting debris of C/C composites prepared by chemical vapor deposition (CVD) was used as the source of carbon powder. Chemical vapor deposition (CVD) carbon powder/copper-based powder metallurgy friction materials with different CVD carbon powder contents were prepared by powder metallurgy method. The microstructure and composition of the friction surface of the materials were analyzed by scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). The mechanical properties, friction and wear properties were also studied. The results show that the brinell hardness, density and compressive strength of CVD carbon powder/copper-based powder metallurgy materials decrease and the open porosity increases respectively with increasing the content of CVD carbon powder. The CVD carbon powder is smooth layer pyrolytic carbon. The main wear mechanism of 1%-2% CVD carbon powder/ copper-based powder metallurgy materials is abrasive wear, and the main wear mechanism of 3%-5% CVD carbon powder/copper-based powder metallurgy materials samples is mixture of abrasive and delamination wear.

Key words： powder metallurgy copper-based friction material CVD carbon powder cutting debris

Received: 11 October 2018 Published: 12 July 2019

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	WANG Xiufei
	LI Bingju
	ZHANG Xiang
	YI Xu
	WANG Bin
	TAN Zhoujian

Cite this article:

WANG Xiufei,LI Bingju,ZHANG Xiang, et al. Effect of CVD carbon content on the properties of copper-based powder metallurgy clutch material[J]. Materials Science and Engineering of Powder Metallurgy, 2019, 24(2): 129-136.

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http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2019/V24/I2/129

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