Szwajka Krzysztof, Zielińska-Szwajka Joanna, Trzepieciński Tomasz
Department of Integrated Design and Tribology Systems, Faculty of Mechanics and Technology, Rzeszow University of Technology, ul. Kwiatkowskiego 4, 37-450 Stalowa Wola, Poland.
Department of Component Manufacturing and Production Organization, Faculty of Mechanics and Technology, Rzeszow University of Technology, ul. Kwiatkowskiego 4, 37-450 Stalowa Wola, Poland.
Materials (Basel). 2023 Mar 12;16(6):2273. doi: 10.3390/ma16062273.
The aim of this work was to determine the effect of selected parameters of friction welding, such as friction pressure and welding speed, on the mechanical properties and microstructure of friction-welded Inconel 713C-32CrMo4 joints. Tensile strength and hardness tests were carried out to determine the mechanical properties of the resulting welded joints. The results of the ultimate tensile strength, hardness, and microstructure were linked to the parameters of the welding process. It was found that the highest tensile strength was 1222 N/mm. There was a significant increase in the hardness value in the thermo-mechanically affected zone for all samples. However, as the friction pressure increased, the zone with the higher hardness value migrated towards the 32CrMo4 material. In all weld tests, the fracture was found on the 32CrMo4 steel side. A distinct band of carbide formation was observed between the thermo-mechanically affected zone and the Inconel 713C base material.
这项工作的目的是确定摩擦焊接的选定参数,如摩擦压力和焊接速度,对摩擦焊接的Inconel 713C-32CrMo4接头的力学性能和微观结构的影响。进行拉伸强度和硬度测试以确定所得焊接接头的力学性能。将极限抗拉强度、硬度和微观结构的结果与焊接工艺参数相关联。结果发现,最高抗拉强度为1222 N/mm²。所有样品的热机械影响区的硬度值都有显著增加。然而,随着摩擦压力的增加,硬度值较高的区域向32CrMo4材料迁移。在所有焊接测试中,断裂都发生在32CrMo4钢一侧。在热机械影响区和Inconel 713C母材之间观察到明显的碳化物形成带。