Mechanical and Tribological Behavior of Warm Rolled Al-6Si-3Graphite Self Lubricating Composite Synthesized by Spray Forming Process

摘要: In this investigation, the mechanical and tribological behavior of warm rolled Al-6Si-3Gr (graphite) self-lubricating composite have been studied. A spray forming process was used to synthesize composite. The graphite particles were reinforced externally into jet molten Al-Si alloy. porosity generated under that eliminated by secondary (warm rolling). Warm rolling carried out with 20, 40, 60 80% thickness reduction in multi-passes on high non-reversing mills. Refinement distribution silicon increased. properties namely hardness strengths also improved rolling. Wear after each investigated dry sliding condition. Composite showed better results coefficient friction wear rate. improvement, nature debris discussed details its microstructural features. Different characterization techniques support prediction change properties. load bearing capacity increased These composites could be for those applications where less is required.