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EFFECTS OF MANGANESE CONTENT AND COOLING RATE ON FATIGUE IN LIMIT HEAVY SECTIONAL SPHEROIDAL GRAPHITE CAST IRON

机译:锰含量和冷却速率对极限断面球墨铸铁中疲劳的影响

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Axial load fatigue test was carried out using the spheroidal graphite cast iron which changed the Mn content and the cooling rate, following conclusions were obtained. (1) The cooling rate became slow in each Mn content, defect size of fracture origin was to become large, and the fatigue limit was decreasing In the case of same cooling rate, the fatigue limit was increased with increase of the Mn content.
机译:使用改变了Mn含量和冷却速度的球墨铸铁进行了轴向载荷疲劳试验,得出以下结论。 (1)各Mn含量的冷却速度变慢,断裂起点的缺陷尺寸变大,疲劳极限降低。在相同冷却速度的情况下,疲劳极限随着Mn含量的增加而增加。

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