Pashechko Mykhaylo, Tisov Oleksandr
Faculty of Mechanical Engineering, Politechnika Lubelska, Nadbystrzycka Str. 36, 20-618 Lublin, Poland.
School of Aerospace Engineering, Xi'an Jiaotong University, West Xianning Road 28, Xi'an 710049, China.
Materials (Basel). 2022 Jun 21;15(13):4393. doi: 10.3390/ma15134393.
In this study, we analyzed the quaternary Fe-C-Mn-B system to create new eutectic cast alloys for coating deposition and additive manufacturing. Experimental samples were fabricated via the wire arc manufacturing method with argon shielding using Kemppi Pro 5200 Evolution equipment. Annealing was performed in a vacuum electric furnace at 1273 K for 350 h. For phase analyses, Jeol Superprobe 733 equipment was used. Metallographic and differential thermal analyses were used to reveal the eutectic structure of the samples. Examinations of the quaternary Fe-C-Mn-B system demonstrated that several eutectic alloys existed in the system. Four isothermal pseudo-ternary sections of the Fe-C-Mn-B system were studied: "FeB"-FeC-"FeMn"; FeB-"FeC"-"FeMn"; "FeB"-FeC-"FeMn"; "FeB"-"FeC"-"FeMn". Broad eutectic concentrations enabled us to overcome parameter fluctuations during additive manufacturing. In each isothermal section, two dissimilar phase regions were determined: one with a ternary Fe-C-B composition and the other with a ternary Fe-C-Mn composition. Depending on the manganese content, two types of solid solutions could be formed: (Fe, Mn) or (Fe, Mn).
在本研究中,我们分析了四元Fe-C-Mn-B系,以制备用于涂层沉积和增材制造的新型共晶铸造合金。实验样品通过使用肯倍Pro 5200 Evolution设备的电弧制造方法并采用氩气保护来制备。在真空电炉中于1273 K下进行350 h的退火处理。使用日本电子超级探针733设备进行相分析。利用金相分析和差热分析来揭示样品的共晶组织。对四元Fe-C-Mn-B系的研究表明,该体系中存在几种共晶合金。研究了Fe-C-Mn-B系的四个等温伪三元截面:“FeB”-FeC-“FeMn”;FeB-“FeC”-“FeMn”;“FeB”-FeC-“FeMn”;“FeB”-“FeC”-“FeMn”。较宽的共晶浓度使我们能够克服增材制造过程中的参数波动。在每个等温截面中,确定了两个不同的相区:一个具有三元Fe-C-B成分,另一个具有三元Fe-C-Mn成分。根据锰含量的不同,可以形成两种类型的固溶体:(Fe, Mn)或(Fe, Mn)。