Effects of Sliding Speed on Wear Resistance of Recycled Composite Collar under Different Loads

Feng Zhiming; Song Yanpei; Zhao Zhenkai

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Effects of Sliding Speed on Wear Resistance of Recycled Composite Collar under Different Loads
Vol. 31, Issue 12, Pages: 1145-1147(2011)
Published： 2011 ，
DOI：

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[1]冯志明,宋延沛,赵振凯.不同载荷下再生复合辊环耐磨性能研究[J].特种铸造及有色合金,2011,31(12):1145-1147.

Feng Zhiming, Song Yanpei, Zhao Zhenkai. Effects of Sliding Speed on Wear Resistance of Recycled Composite Collar under Different Loads. [J]. Special Casting & Nonferrous Alloys 31(12):1145-1147(2011)
[1]冯志明,宋延沛,赵振凯.不同载荷下再生复合辊环耐磨性能研究[J].特种铸造及有色合金,2011,31(12):1145-1147. DOI：

Feng Zhiming, Song Yanpei, Zhao Zhenkai. Effects of Sliding Speed on Wear Resistance of Recycled Composite Collar under Different Loads. [J]. Special Casting & Nonferrous Alloys 31(12):1145-1147(2011) DOI：

摘要

通过对回收的废旧复合辊环材料进行重熔和离心铸造

制备了由耐磨WCp颗粒增强的复合层与Fe-C合金基体组成的再生复合材料辊环

并采用MMS-1G高速销-盘摩擦磨损试验机、扫描电镜（SEM）

研究了在100、150和200N载荷下滑动速度对再生复合辊环的摩擦性能的影响。结果表明

在100、150和200N载荷条件下

随滑动速度的增加

再生复合辊环的磨损率均出现幅度很小的波动现象

而摩擦因数先降低后缓慢增加。在相同滑动速度条件下

磨损率明显随载荷的增加而增大

而摩擦因数随载荷的增加而降低。再生复合辊环在低速条件下的磨损机理主要为犁沟磨损和塑性变形

而当滑动速度较高时

表现为粘着磨损、氧化磨损和磨粒磨损。

Abstract

WC particle reinforced Fe-C matrix recycled composites roll collar were fabricated with remelting recycled waste composite roll collar materials by centrifugal casting.Effects of different sliding velocities on wear and frictional behavior of the recycled composite collar were investigated with the help of MMS-1G high speed pin-disk frictional and wear testing machine and SEM（scanning electron microscope） at 100 N

150 N

200 N loads.The results show that with the increase of sliding speed

the wear rate of recycled composite layer appears small fluctuations

and the friction coefficient is decreased firstly and then increased slowly at 100 N

150 N and 200 N.At a fixed sliding speed

wear rate is increased and frictional coefficient is decreased with the increase of load.Wear mechanisms of recycled composites roll collar are mainly characterized by plowing wear and plastic formation at low speed

while with the high speed

it is characterized mainly by abrasive wear

adhesion wear and oxidative wear.