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研究了铸态球墨铸铁基体中珠光体的含量对等温淬火后奥一贝氏体球墨铸铁机械性能的影响，揭示了珠光体含量的变化对奥一贝氏体球铁影响的一般规律，提出利用同种材料、相同的工艺方法制作不同机械性能要求的齿轮的方法。
The effect of pearlite content in as-cast ductile iron matrix on the mechanical properties of Austenitic bainitic ductile iron after isothermal quenching was studied. The general rule of the influence of the pearlite content on the ductile iron content of Austenitic bainite was revealed. The same material, the same method of making different mechanical properties of the gear method.