复层铁基粉末冶金材料的制备及其摩擦学性能分析
刘振明,尹延国,张国涛,尹利广
合肥工业大学摩擦学研究所, 安徽 合肥 230009
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
摘要 采用粉末冶金工艺制备基体致密、表层多孔含油的双层复合铁基粉末冶金材料,用HDM-20端面摩擦磨损试验机评价其摩擦磨损性能。结果表明,当复层材料表层的孔隙率约为23%时,试样稳定运行时间长,减摩耐磨性能好;与相近孔隙率的单层材料相比,复层材料的减摩耐磨性能与承载能力得到明显提高。
关键词 :
粉末冶金 ,
复层材料 ,
高密度 ,
孔隙率 ,
摩擦磨损
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.
Key words :
powder metallurgy
multi-layer material
high density
porosity
friction and wear
收稿日期: 2015-06-08
出版日期: 2016-04-20
基金资助: 高性能液压泵关键摩擦副高强铁基减摩材料开发
通讯作者:
刘振明
E-mail: 1094760473@qq.com
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