Wear of alumina fibre–aluminium metal matrix composites by two-body abrasion
Wear of alumina fibre–aluminium metal matrix composites by two-body abrasion
复制标题
氧化铝纤维-铝金属基复合材料的二体磨损
DOI：
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发表时间：
1989
期刊：
影响因子：
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通讯作者：
I. Hutchings
中科院分区：
文献类型：
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作者：
A. Wang;I. Hutchings
本文研究了氧化铝纤维-铝基复合材料系统的二体磨料磨损响应。复合材料的耐磨性被发现的范围从几乎2到6倍的未增强的基体合金。发现不同尺寸磨粒的磨损行为有一个过渡。当颗粒较小时，复合材料的耐磨性随纤维体积分数的增加而提高，磨损表面相对光滑。随着较大的颗粒，耐磨性下降，增加纤维含量高于一定水平，并在磨损表面上，纤维断裂和广泛的脱粘观察在纤维/基体界面。磨料颗粒尺寸对这种过渡行为的影响可以用点载荷下韧性基体中脆性纤维断裂的理论分析来解释。MST/872
Investigations are reported of the response of an alumina fibre–aluminium metal matrix composite system to wear by two-body abrasion. The wear resistance of the composites was found to range from almost two to six times that of the unreinforced matrix alloy. A transition in wear behaviour was found for the various sizes of abrasive particle. With small particles, the wear resistance of the composite increased with increasing fibre volume fraction and the worn surfaces were relatively smooth. With larger particles, the wear resistance decreased with increasing fibre content above a certain level and, on the worn surfaces, fibre fracture and extensive debonding were observed at the fibre/matrix interface. The effect of abrasive particle size on this transition behaviour may be explained by a theoretical analysis of the fracture of a brittle fibre in a ductile matrix under point loading. MST/872