Modeling of Closure of Metallurgical Discontinuities in the Process of Forging Zirconium Alloy
Banaszek G. Ozhmegov K. Kawałek A. Sawicki S. Arbuz A. Naizabekov A.
August 2023Multidisciplinary Digital Publishing Institute (MDPI)
Materials
2023#16Issue 15
This article presents the results of testing the conditions of closing foundry voids during the hot forging operation of an ingot made of zirconium with 1% Nb alloy and use of physical and numerical modeling, continuing research presented in a previous thematically related article published in the journal Materials. The study of the impact of forging operation parameters on the rheology of zirconium with 1% Nb alloy was carried out on a Gleeble 3800 device. Using the commercial FORGE®NxT 2.1 program, a numerical analysis was performed of the influence of thermo-mechanical parameters of the hot elongation operation in trapezoidal flat and rhombic trapezoidal anvils on the closure of foundry voids. The analysis of the obtained test results was used to formulate recommendations on the technology of hot forging and the anvilgeometry, ensuring closure of foundry voids. Based on their research, the authors conclude that the shape of the deformation basin and the value and hydrostatic pressure have the greatest influences on the closure of foundry voids.
closurefoundry voids , Forge , forging process , numerical modeling , zirconium ally
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Metal Forming Department, Częstochowa University of Technology, ul. J.H. Dąbrowskiego 69, Częstochowa, 42-201, Poland
Mechanical Engineering Department, AbylkasSaginov Karaganda Technical University, 56 Nursultan Nazarbayev Ave, Karaganda, 100027, Kazakhstan
Core Facilities Department, Nazarbayev University, 53 KabanbayBatyr Ave, Astana, 010000, Kazakhstan
Rudny Industrial Institute, 50Let Oktyabrya Street 38, Rudny, 111500, Kazakhstan
Metal Forming Department
Mechanical Engineering Department
Core Facilities Department
Rudny Industrial Institute
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