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0前言飞轮是柴油机上的一个重要零件，起着储能并使柴油机完成一个传动循环的作用。柴油机工作时，由于飞轮高速运转，在离心力作用下，飞轮内部将产生较大的应力，如应力大于材料的许用应力，飞轮就会破碎，造成严重后果。因此，飞轮材质必须满足一定的性能要求，才能承受柴油
0 Introduction Flywheel is an important part of the diesel engine, which plays the role of energy storage and diesel engine to complete a transmission cycle. Diesel engine work, due to high-speed flywheel, centrifugal force, the flywheel will have a greater internal stress, such as the stress is greater than the allowable stress of the material, the flywheel will be broken, causing serious consequences. Therefore, the flywheel material must meet certain performance requirements to withstand diesel