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首页> 外文期刊>Practical Metallography >Metallurgical Failure Investigation of a Surface Hardened Drive Shaft Made of Tempered Low-Alloy Steel 25CrMo4 (1.7218)
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Metallurgical Failure Investigation of a Surface Hardened Drive Shaft Made of Tempered Low-Alloy Steel 25CrMo4 (1.7218)

机译：淬火低合金钢25CrMo4（1.7218）制成的表面硬化传动轴的冶金失效研究

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摘要

A drive shaft of a multifunctional mechanical processing machine for large components broke down during processing. The OEM shaft was worn-out after years of operation and was recently replaced. The replaced drive shaft was delivered to the materials laboratory of the Berlin gas turbine plant in order to identify the cause of the damage. It was found that the component failed due to high cycle fatigue failure, HCF, on the tooth roots after a short period of operation. The teeth of the damaged shaft were inappropriately induction surface hardened.
机译：大型零件的多功能机械加工机的驱动轴在加工过程中发生故障。经过多年的使用，OEM轴已经磨损，最近已更换。更换后的传动轴已送到柏林燃气轮机厂的材料实验室，以查明损坏原因。发现该组件由于短时间操作后牙根上的高循环疲劳失效HCF而失效。受损轴的齿未适当地感应表面硬化。

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