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Purpose: this article presents the results of mechanical and structure testing of X10CrMoVNb9-1 (P91) steel in initial state and after annealing, creep tests and long-term service under creep conditions Design/methodology/approach: The material for investigations was X10CrMoVNb9-1 (P91) steel in the form of two test pieces of tubes with dimensions of Ø355.6x50 mm and Ø325x38 mm in initial state and...
Purpose: A growing trend to use the copper-based strips is observed recently world-wide in the electric and electronic industry . Ultrafine grained copper and solid solution hardened copper alloys are applied where high electrical conductivity and good mechanical properties are required. Design/methodology/approach: This study was aimed to investigate microstructure in strips of copper alloys with...
Purpose: In this paper the result of laser surface feeding or remelting is discussed. The remelted layers which were formed on the surface of the investigated hot work steel were examined and analyzed metallographically and analyzed using a hardness testing machine. The resistance research has been done on the CSM Instruments. Design/methodology/approach: In this paper the results of laser treatment...
Purpose: The article deals with the advance configuration and the installation of vehicle components to the experimental rail vehicle powered by the traction battery. Particularly the paper focus on the research problems of the construction of the experimental rail vehicle (bogie), the structure of electrical equipment of experimental rail vehicle (traction drive, control system, power supply system...
Purpose: The main objective of this study was performed to determine the effect of selective laser sintering parameters such as power output, laser distance between the point’s sintered metal powder during additive manufacturing as well as the orientation of the model relative to the laser beam and substrate on the surface quality of the model. Design/methodology/approach: In research the device for...
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