Marzec Jan, Hawryluk Marek, Rychlik Marcin, Lachowicz Marzena M, Suliga Maciej
Department of Metal Forming, Welding and Metrology, Wroclaw University of Science and Technology, Lukasiewicza Street 5, 50-370 Wroclaw, Poland.
Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, Al. Armii Krajowej 19, 42-201 Czestochowa, Poland.
Materials (Basel). 2021 Mar 7;14(5):1262. doi: 10.3390/ma14051262.
The study performs a comparative analysis of the wear of tools made of two wear-resistant materials: steel Hardox 600 and NC11LV, used in the process of forming a band for roofing tiles. The analyses were to allow the assessment of the possibility of replacing the standard material for tools in this process with a much less expensive tool steel for cold work after heat treatment (with a large number of carbides), as an alternative material dedicated to tools resistant to intense abrasive wear. The performed investigations included a macroscopic and geometrical analysis with the use of 3D scanning, microstructural analyses conducted by means of a light microscope, as well as an analysis of the topography of the working areas of the tools with the use of SEM, and microhardness tests. The obtained results demonstrate that the tools made of both materials were characterized with a similar level of wear, which, in the most critical area, reached over 4 mm, while the tools made of steel NC11LV worked over a much longer period of time without regeneration, equaling 912 h, and an insert made of steel Hardox 600 operated for 384 h. A higher tool life in the case of NC11LV steel may be the result of higher hardness and the presence of hard carbides.
该研究对两种耐磨材料制成的工具磨损情况进行了对比分析，这两种材料分别是用于屋面瓦成型过程的Hardox 600钢和NC11LV钢。这些分析旨在评估在该过程中，用一种价格便宜得多的经热处理的冷作工具钢（含有大量碳化物）替代标准工具材料作为耐强烈磨料磨损工具专用替代材料的可能性。所进行的研究包括使用3D扫描进行宏观和几何分析、借助光学显微镜进行微观结构分析、使用扫描电子显微镜对工具工作区域的形貌进行分析以及显微硬度测试。所得结果表明，两种材料制成的工具磨损程度相近，在最关键区域磨损超过4毫米，而由NC11LV钢制成的工具在无需修复的情况下工作时间长得多，达912小时，由Hardox 600钢制成的刀片工作了384小时。NC11LV钢制成的工具使用寿命更长，可能是因为其硬度更高且存在硬质碳化物。
