as cast pearlite ductile iron 铸态珠光体球铁
Crankshafts of as cast pearlite ductile iron have been produced stably by double random inoculation.
通过二次随流孕育，稳定生产铸态珠光体球铁曲轴的生产工艺。
The results show that the fatigue damage variable of pearlite ductile cast iron as a function of fatigue cycle varies according to the index law.
结果表明：球墨铸铁的疲劳损伤变量随疲劳周数呈指数规律变化；
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