Banaszek Grzegorz, Ozhmegov Kirill, Kawałek Anna, Sawicki Sylwester, Arbuz Alexandr, Naizabekov Abdrakhman
Metal Forming Department, Częstochowa University of Technology, ul. J.H. Dąbrowskiego 69, 42-201 Częstochowa, Poland.
Mechanical Engineering Department, AbylkasSaginov Karaganda Technical University, 56 Nursultan Nazarbayev Ave., Karaganda 100027, Kazakhstan.
Materials (Basel). 2023 Aug 2;16(15):5431. doi: 10.3390/ma16155431.
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 . 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 FORGENxT 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.
本文介绍了对含1%铌的锆合金铸锭进行热锻操作时封闭铸造孔洞条件的测试结果，并运用了物理和数值模拟，这是对发表在该期刊上的一篇主题相关的先前文章中所进行研究的延续。在Gleeble 3800设备上研究了锻造操作参数对含1%铌锆合金流变学的影响。使用商业FORGENxT 2.1程序，对梯形平板砧和菱形梯形砧中热伸长操作的热机械参数对铸造孔洞封闭的影响进行了数值分析。对所得测试结果的分析用于制定关于热锻工艺和砧座几何形状的建议，以确保铸造孔洞的封闭。基于他们的研究，作者得出结论，变形盆地的形状、值和静水压力对铸造孔洞的封闭影响最大。
