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首页> 外文期刊>Journal of Iron and Steel Research International >Effect of Graphite Content and Granularity on Mechanical and Tribological Properties of Bronze Alloyed Powder Composite
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Effect of Graphite Content and Granularity on Mechanical and Tribological Properties of Bronze Alloyed Powder Composite

机译：石墨含量和粒度对铜合金粉末复合材料力学和摩擦学性能的影响

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摘要

The bronze alloyed powder composite containing nanoparticles was developed by hot pressing. The effects of the content and granularity of graphite on hardness, machinability, bending strength, compression strength, and friction and wear behavior of the composites were studied. The microstructures of the specimens were analyzed by SEM. The results showed that the graphites are distributed in net when nanographites are added, resulting in the decrease of mechanical properties and abrasive resistance. When the content of nanographite is 10 percent. the composite is brittle. The graphite is distributed in the form of block when micrographite is added, improving the mechanical properties and abrasive resistance. Wear track was studied by SEM.
机译：通过热压开发了包含纳米颗粒的青铜合金粉末复合材料。研究了石墨含量和粒度对复合材料硬度，可加工性，弯曲强度，抗压强度以及摩擦磨损性能的影响。样品的显微结构通过SEM进行分析。结果表明，加入纳米石墨后，石墨呈网状分布，导致机械性能和耐磨性下降。当纳米石墨的含量为10％时。复合材料很脆。添加微石墨时，石墨以块状分布，从而改善了机械性能和耐磨性。磨损轨迹由SEM研究。

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