Microstructural Characterization and Mechanical Property of Fly Ash/Al-25Mg Composites
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2014年第5期
论文作者：王庆平 MIN Fanfei ZHU Jinbo
文章页码：1019 - 1022
摘 要：Fly ash/A1-Mg composites are fabricated by powder metallurgical method. The morphology and structure of fl y ash/A1-Mg composites are characterized by scanning electron microscope（SEM） and X-ray diffraction, respectively. The infl uences of different fl y ash content on the friction and wear behavior of the composites are investigated at a constant sliding velocity of 400 r/min and the worn mechanism of composites is discussed. The results indicate that the friction coefficient is steadily lower than that of Al alloy matrix at the lower fl y ash content and loads. For the fl y ash/A1-Mg composites, the wear mechanism is characterized as abrasive wear and adhesive wear under small normal load and at low fl y ash content, and it is characterized as delamination wear and abrasive wear transferred onto the counterpart under high normal load and at high fl y ash content.
王庆平，MIN Fanfei，ZHU Jinbo
School of Materials Science and Engineering, Anhui University of Science and Technology
摘 要：Fly ash/A1-Mg composites are fabricated by powder metallurgical method. The morphology and structure of fl y ash/A1-Mg composites are characterized by scanning electron microscope（SEM） and X-ray diffraction, respectively. The infl uences of different fl y ash content on the friction and wear behavior of the composites are investigated at a constant sliding velocity of 400 r/min and the worn mechanism of composites is discussed. The results indicate that the friction coefficient is steadily lower than that of Al alloy matrix at the lower fl y ash content and loads. For the fl y ash/A1-Mg composites, the wear mechanism is characterized as abrasive wear and adhesive wear under small normal load and at low fl y ash content, and it is characterized as delamination wear and abrasive wear transferred onto the counterpart under high normal load and at high fl y ash content.
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