Wieczorek Andrzej N, Wójcicki Mateusz, Drwięga Andrzej, Tuszyński Waldemar, Nuckowski Paweł M, Nędza Jakub
Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, Akademicka 2 Street, 44-100 Gliwice, Poland.
Division of Machines and Equipment, KOMAG Institute of Mining Technology, Pszczyńska 37 Street, 44-101 Gliwice, Poland.
Materials (Basel). 2022 Apr 7;15(8):2709. doi: 10.3390/ma15082709.
The paper presents results of testing the resistance of chain wheels made of alloyed austempered ductile iron (ADI) with various content of retained austenite and subjected to shot peening, to the dynamic and abrasive wear by solid particles. The impact of the additional environmental factor-external dynamic forces-accompanying the operation of the chain wheels in the presence of the quartz particles has a synergistic effect on the abrasive wear in the contact area between the wheels and the chain links for all the considered variants, except for the ADI with the structure of the upper ausferrite. Based on the results obtained, it was found that the abrasive wear by solid particles increased and that the hardness of the surface layer of the chain wheels subjected to shot peening decreased. The relative increase in the wear ΔV/δ, representing the share of the additional dynamic force in the process of wear, was in the range of 16-40% for the group of tested cast iron ADI not subjected to shot peening, while for the shot peened-in the range of 16-64%. Demonstration of phase changes during the operation of chain wheels and the change in their intensity depending on the combination of environmental factors is the work novelty. In the opinion of the authors, the presented results will be of great practical importance as they will allow to increase the knowledge on the proper selection of ADI cast iron for environmental conditions.
本文介绍了对由不同残余奥氏体含量的合金等温淬火球墨铸铁（ADI）制成且经过喷丸处理的链轮，进行固体颗粒动态磨损和磨料磨损测试的结果。在存在石英颗粒的情况下，伴随链轮运行的额外环境因素——外部动态力，对所有考虑的变体（除了具有上贝氏体组织的ADI），在链轮与链节接触区域的磨料磨损具有协同作用。基于获得的结果发现，固体颗粒的磨料磨损增加，并且经过喷丸处理的链轮表面层硬度降低。对于未经过喷丸处理的测试铸铁ADI组，代表磨损过程中额外动态力份额的磨损相对增量ΔV/δ在16% - 40%范围内，而对于经过喷丸处理的则在16% - 64%范围内。证明链轮运行过程中的相变及其强度随环境因素组合的变化是这项工作的新颖之处。作者认为，所呈现的结果将具有重要的实际意义，因为它们将有助于增加关于在环境条件下正确选择ADI铸铁的知识。
