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首页> 外文期刊>Archives of Metallurgy and Materials >The Role of Operational Factors in Shaping of Wear Properties of Alloyed Austempered Ductile Iron Part II. an Assessment of the Cumulative Effect of Abrasives Processes and the Dynamic Activity on the Wear Property of Ausferritic Ductile Iron/ Rola Czynników Eksploatacyjnych W Kszta?towaniu W?a?ciwo?ci Zu?yciowych Stopowych ?eliw Sferoidalnych Ausferrytycznych Cz??? II. Ocena Skumulowanego Dzia?ania Scierniwa I Wymuszeń Dynamicznych Na W?a?ciwo?ci Zu?yciowe Sferoidalnych ?eliw Ausferrytycznych
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The Role of Operational Factors in Shaping of Wear Properties of Alloyed Austempered Ductile Iron Part II. an Assessment of the Cumulative Effect of Abrasives Processes and the Dynamic Activity on the Wear Property of Ausferritic Ductile Iron/ Rola Czynników Eksploatacyjnych W Kszta?towaniu W?a?ciwo?ci Zu?yciowych Stopowych ?eliw Sferoidalnych Ausferrytycznych Cz??? II. Ocena Skumulowanego Dzia?ania Scierniwa I Wymuszeń Dynamicznych Na W?a?ciwo?ci Zu?yciowe Sferoidalnych ?eliw Ausferrytycznych

机译：操作因素在合金奥氏体球墨铸铁第二部分磨损性能成形中的作用。磨料工艺的累积效应和动态活性对奥氏体球墨铸铁磨损性能的评估。二。磨料和动态萃取物对奥氏体球墨铸铁磨损性能的累积影响评估

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摘要

The study presents results of the second part of wear tests of austempered ductile irons on a specially designed test rig that allows simulating the real operating conditions of chain wheels. The chain wheels subjected to testing were operated in conditions characterized by combined action of loose quartz abrasive and an external dynamic force. The studies involved the determination of the hardness, microstructure and linear wear of the ADIs in question considered as a function of the austempering temperature and the austenite content. Based on the results obtained, the following was observed: a decrease in the wear as a function of the austempering temperature and thus in the content of austenite in ADIs; a slight deformation of graphite after completing the wear test involving external dynamic forces; a negative linear dependence between the linear wear and the impact resistance. It was found that the increased wear of cast irons with a lower content of austenite may be caused by the propagation of cracks initiated by damage to graphite nodules, while in the conditions characterized by combined action of abrasive wear and dynamic load the cast irons with a higher content of austenite and higher impact resistance have better wear properties.
机译：这项研究提出了在特殊设计的测试台上对奥氏体球墨铸铁进行第二部分磨损测试的结果，该测试台可以模拟链轮的实际运行状况。进行测试的链轮在松散的石英磨料和外部动力共同作用的条件下运行。研究涉及确定所考虑的ADI的硬度，微观结构和线性磨损，这些硬度被视为奥氏体回火温度和奥氏体含量的函数。根据获得的结果，观察到以下结果：磨损的减少与奥氏体回火温度的函数关系，因此与ADIs中的奥氏体含量有关;完成涉及外部动力的磨损测试后，石墨会发生轻微变形;线性磨损和抗冲击性之间的线性负相关性。已经发现，奥氏体含量较低的铸铁磨损的增加可能是由于石墨小球损坏引起的裂纹扩展而引起的，而在以磨料磨损和动态载荷共同作用为特征的条件下，较高的奥氏体含量和较高的抗冲击性具有较好的磨损性能。

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