Dry Sliding-Friction and Wear Behavior of Hot-Extruded Al6061/Si3N4/Cf Hybrid Metal Matrix Composite

被引：0
|
作者：
C. S. Ramesh
Saleem Khan
Zulfiqar A. Khan
机构：
[1] Presidency University,Research & Innovations and Department of Mechanical Engineering, School of Engineering
[2] K S Institute of Technology,Department of Mechanical Engineering
[3] Bournemouth University,Department of Design & Engineering, NanoCorr Energy & Modelling Research Group
来源：
Journal of Materials Engineering and Performance | 2020年 / 29卷
关键词：
carbon fibers; coefficient of friction (COF); hot extrusion; hybrid composite; Si; N; wear rates;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effects of reinforcement addition and hot extrusion on the microstructures, micro hardness, friction, and wear behavior of aluminum (Al) hybrid composite were investigated. Al6061 dispersed with electroless nickel-coated Si3N4 (6 wt.%) and copper-coated carbon fiber (Cf) (1 wt.%) hybrid composites was developed through stir casting followed by hot extrusion. Optical micro-structural studies confirmed that the size of reinforcements decreased, and their orientations were in the extrusion direction. The decrease in the grain size (29%) of hybrid composites was larger than that in the grain size of matrix alloys under hot-extruded conditions. The synthesized hot-extruded Al6061 hybrid composite exhibited a lower coefficient of friction (51%) and high wear resistance (39%) compared with the hot-extruded Al6061 base alloy.
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页码：4474 / 4483
页数：9
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