Modeling the effect of temperature on the wear resistance of metals reinforced with ceramic particles

被引:28
作者
Rodríguez, J [1 ]
Martín, A [1 ]
Llorca, J [1 ]
机构
[1] Polytech Univ, Dept Mat Sci, ETS Ingn Caminos, Madrid 28040, Spain
关键词
composites; wear; high temperature; fracture; abrasion;
D O I
10.1016/S1359-6454(99)00356-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The wear resistance of a 2014 Al alloy reinforced with Al2O3 ceramic particles was studied as a function of temperature. The wear rate increased with temperature and a transition from mild to severe wear was detected above 170 degrees C. A zone containing comminuted ceramic particles was found below the contact surface, and the thickness of this region was proportional to the wear rate in the whole temperature range. Three-dimensional finite element analyses were carried out to compute the stresses in the composite as a function of the distance to the contact surface. They were used to estimate the stresses acting on the ceramic particles and to calculate the thickness of the fragmented-particle region. The theoretical results were in agreement with the experimental data, and they illustrate the effect of temperature on the wear resistance of metals reinforced with ceramic particles. (C) 2000 Acta Metallurgica Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:993 / 1003
页数:11
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