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| Preparation of iron-based powder metallurgy multi-layer material and its tribological performance analysis |
| LIU Zhen-ming，YIN Yan-guo，ZHANG Guo-tao，YIN Li-guang |
| Institute of Tribology， Hefei University of Technology， Hefei 230009， China |
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Abstract Double layer iron-based composite material with dense matrix and porous oil-bearing surface was prepared by powder metallurgy method. The friction and wear properties were investigated on an HDM-20 tribo-tester. The results show that when the porosity of surface is about 23%， the sample has long stable operation time， good friction-reducing and wear-resistance performance. Compared with single layer sample with similar porosity， the multi-layer samples have obvious improvement on anti-friction and wear resistance performance， as well the bearing capacity.
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Received: 08 June 2015
Published: 20 April 2016
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2016, Vol. 26 
