Friction and Wear Study of Dispersed Phase Intermetallic Compounds in Ferrous Matrices

摘要

The development of materials with improved wear resistance, and the implementation of current wear-reducing technology in design procedures, are important steps in conserving energy and materials. The basic wear process is defined as the degradation and removal of material surface, and is explained in terms of adhesion, abrasion, fracture and delamination, and corrosion. The interaction of wear mechanisms, and design strategies for reducing wear, stress the importance of understanding the effect of the environmental and loading conditions on the material removal process. Using powder metallurgy fabrication processes, wear test samples consisting of a ferrous binder and an intermetallic dispersed phase were made. The results of the wear tests led to the conceptual design of an improved wear test apparatus, and demonstrated the effectiveness of the intermetallic compounds as a dispersed phase in reducing wear rates. (ERA citation 03:004351)