Abrasive wear properties of Al2 O3 /Mo composite
1.
School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China;
2.
Luoyang Luanchuan Molybdenum Group Co., Ltd, Luoyang 471500, China;
3.
Luoyang Hi-tech Molybdenum &|Tungsten Material Company, Luoyang 471003, China;
4.
Henan Engineering Research Center for Wear of Materials, Henan University of Science and Technology, Luoyang 471003, China
Received Date:
June 19, 2010
Revised Date:
January 29, 2011
Abstract
The microstructure of Al2 O3 /Mo composite was analyzed and the wear behavior was tested. The analysis results of wear data and wear morphology show that the amount of density first increases and then decreases gradually, but hardness increased with the increasing of the volumn fraction of Al2 O3 . There is some degree of reduction on the wear produced by the process of cutting, plowing. When the Al2 O3 volume fraction is 3%, the specific wear rate of composites increases gradually with the particle size decreases. However, at higher Al2 O3 volume fraction (5%, 10%, 15%), the specific wear rate first increases and then decreases with the increasing of abrasive grain diameter. The wear loss increases with the increase of the load, while there is no influence on the order. On the same load, the wear loss shows a declining trend with the continuous increase of Al2 O3 content, but the speed is slower.
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