Falat Ladislav, Džupon Miroslav, Ťavodová Miroslava, Hnilica Richard, Ľuptáčiková Veronika, Čiripová Lucia, Homolová Viera, Ďurišinová Katarína
Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 04001 Košice, Slovakia.
Faculty of Environmental and Manufacturing Technology, Technical University in Zvolen, T. G. Masaryka 24, 96001 Zvolen, Slovakia.
Materials (Basel). 2019 Jul 9;12(13):2212. doi: 10.3390/ma12132212.
Five different alloy hardfacings on 16MnCr5 grade low-carbon ferritic-pearlitic steel were investigated in terms of their abrasive wear resistance in laboratory testing conditions. The selected hardfacing materials, namely "E520 RB", "RD 571", "LNM 420FM", "E DUR 600", and "Weartrode 62", were individually deposited onto plain ground-finish surfaces of 10 mm thick steel plate samples. The studied hardfacings were fabricated using several different welding methods and process parameters proposed by their industrial manufacturers. In the present comparative study, the results obtained from laboratory abrasive wear tests of the investigated hardfacings were analyzed and discussed in relation to their microstructure, hardness, and wear mechanism characteristics. Regardless of great variety in microstructure and chemical composition of individual hardfacing materials, the results clearly indicated the governing factor for the wear resistance improvement to be the overall carbon content of the used hardfacing material. Thus it has been shown that the "E520 RB" hardfacing exhibited the highest abrasive wear resistance thanks to its appropriate hardness and beneficial "ledeburite-type" eutectic microstructure.
在实验室测试条件下，对16MnCr5级低碳铁素体-珠光体钢上的五种不同合金堆焊层的耐磨性能进行了研究。所选的堆焊材料，即“E520 RB”、“RD 571”、“LNM 420FM”、“E DUR 600”和“Weartrode 62”，分别熔敷在10毫米厚钢板样品的平面磨削表面上。所研究的堆焊层采用其工业制造商提出的几种不同焊接方法和工艺参数制成。在本对比研究中，对所研究堆焊层的实验室磨料磨损试验结果进行了分析，并就其微观结构、硬度和磨损机制特征进行了讨论。尽管各堆焊材料的微观结构和化学成分差异很大，但结果清楚地表明，提高耐磨性的主要因素是所用堆焊材料的总碳含量。因此，已表明“E520 RB”堆焊层由于其适当的硬度和有益的“莱氏体型”共晶微观结构而表现出最高的磨料磨损抗性。
