Czupryński Artur
Department of Welding Engineering, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, Poland.
Materials (Basel). 2020 Nov 29;13(23):5445. doi: 10.3390/ma13235445.
In this article, the results of research on the metal-mineral-type abrasive wear of a wear-resistant plate made by a tubular electrode with a metallic core and an innovative chemical composition using the manual metal arc hardfacing process were presented. The properties of the new layer were compared to the results of eleven wear plates manufactured by global suppliers, including flux-cored arc welding gas-shielded (FCAW-GS, Deposition Process Reference Number: 138), flux-cored arc welding self-shielded (FCAW-SS, Deposition Process Reference Number: 114), automated hardfacing, and manual metal arc welding (MMAW, Deposition Process Reference Number: 111) hardfacing T Fe15 and T Fe16 alloys, according to EN 14700:2014. Characterization of the hardfaced layers was achieved by using hardness tests, optical microscopy, confocal microscopy, scanning electron microscopy, and EDS (Energy Dispersive Spectroscopy) and X-ray diffraction analyses. Based on wear resistance tests in laboratory conditions, in accordance with ASTM G65-00: Procedure A, and surface layer hardness tests, in accordance with PN-EN ISO 6508-1, the wear plates most suitable for use in metal-mineral conditions were chosen. The results demonstrated the high metal-mineral abrasive wear resistance of the deposit weld metal produced by the new covered tubular electrode. The tubular electrode demonstrated a high linear correlation between the surface wear resistance and the hardness of the metal matrix of the tested abrasive wear plates. In addition to hardness, size, shape, the dispersion of strengthening phases, and the base metal content, depending on hardfacing technology and technological parameters, impact wear resistance is represented by volumetric loss caused by effect-free or constrained dry abrasive medium contact. The presented results can be used in machine part material selection and wear planning for applications in inspection, conservation, and regeneration interval determination. The obtained results will be applied in a real-time wear rate prediction system based on the measurement of the working parameters.
本文介绍了采用带金属芯的管状电极和创新化学成分，通过手工金属电弧堆焊工艺制造的耐磨板的金属矿物型磨料磨损研究结果。将新层的性能与全球供应商制造的11种耐磨板的结果进行了比较，这些耐磨板包括药芯焊丝气体保护电弧焊（FCAW-GS，熔敷工艺参考编号：138）、药芯焊丝自保护电弧焊（FCAW-SS，熔敷工艺参考编号：114）、自动堆焊以及手工金属电弧焊（MMAW，熔敷工艺参考编号：111）堆焊的T Fe15和T Fe16合金，符合EN 14700:2014标准。通过硬度测试、光学显微镜、共聚焦显微镜、扫描电子显微镜以及能谱仪（EDS）和X射线衍射分析对堆焊层进行了表征。基于按照ASTM G65-00：程序A进行的实验室条件下的耐磨性测试以及按照PN-EN ISO 6508-1进行的表面层硬度测试，选择了最适合在金属矿物条件下使用的耐磨板。结果表明，新型药皮管状电极产生的熔敷焊缝金属具有高金属矿物磨料耐磨性。管状电极在测试的耐磨板的表面耐磨性与金属基体硬度之间显示出高度线性相关性。除了硬度、尺寸、形状、强化相的分散以及母材含量外，取决于堆焊技术和工艺参数，冲击耐磨性由无冲击或受限干磨料介质接触引起的体积损失表示。所呈现的结果可用于机器零件材料选择以及检查、维护和再生间隔确定应用中的磨损规划。所获得的结果将应用于基于工作参数测量的实时磨损率预测系统。
