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In recent years , high-performance copper alloys has attracted wide attention , mainly the material has high strength, low coefficient of friction , wear resistance and good. With further research , people gradually developed a variety of wear-resistant copper alloy and high strength alloys , including bronze, aluminum bronze , lead bronze, etc. , are widely used in bearings, bushings and other wear parts . To get more excellent performance of copper-based alloys, paper selection ZQPb10-10, ZQSn6-6-3 as a comparison test materials, new lead bronze alloy were studied. In this paper, the method of casting , electrolytic copper, pure tin , pure nickel , brass , lead , rare earth was prepared from a new type of wear-resistant lead bronze . Test the mechanical properties of the alloy and tribological properties were studied. By using the universal material testing machine tensile strength copper alloys . At different load and speed conditions, the use of the sliding ring block wear tester test friction and wear properties of copper alloy . Experimental results show that the lead bronze alloy have ZQPb10-10, ZQSn6-6-3 with higher strength . Alloy elements tin, nickel , rare earth alloy improved organization joined to the substrate to be strengthened , and further improve the mechanical properties of the alloy . When worn conditions are the same , the new lead bronze contrast material is less than the coefficient of friction , wear at the same time, the wear volume of the sample is small. Lead bronze alloy of the friction coefficient decreases with the increase of the lead content of the sample 17% of the lead content of the smallest coefficient of friction . Wear volume of the sample and the sample hardness and load speed. By means of optical microscope ( OM ) , scanning electron microscopy ( SEM ) , energy spectrum analysis ( EDX ) and a variety of analysis and testing means , systematic study of the performance characteristics of the organization , composition, morphology of the copper-based alloy . The results show that the lead- bronze alloy , lead to the soft copper particles distributed in the body. Antifriction alloy phase and refined organization to improve its wear resistance is very favorable. In oil lubrication conditions, low load, alloy main wear mechanism based adhesive wear , with the load increases , the wear mechanism is adhesive wear , abrasive wear, fatigue wear .
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