原子能科学技术2025，Vol.59Issue(4)：884-890,7.DOI:10.7538/yzk.2024.youxian.0584
利用压缩实验研究铀钼合金热变形行为
Study of Thermal Deformation Behavior of Uranium-molybdenum Alloys by Compression Experiments
胡秉坤 1李明阳 1何亚斌 1杜艳华1
作者信息
- 1. 中核新型材料研究与应用开发重点实验室,内蒙古包头 014035||中核北方核燃料元件有限公司,内蒙古包头 014035
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摘要
Abstract
In order to study the thermal deformation behavior of uranium-molybdenum alloy,and to provide theoretical support for the design of uranium-molybdenum alloy press working,Gleeble3800 thermo-mechanical simulator was utilized to perform single-pass compression experiments on uranium-molybdenum alloy in the conditions of deformation temperatures of 500,600,700 ℃,and strain rate of 0.01,0.1,1 s-1.The true stress-true strain curves of uranium-molybdenum alloys were established at various temperatures and strain rates,and the effects of temperature and strain rate on the deformation stress of uranium-molybdenum alloys were analyzed.At the same time,the microstructures of uranium-molybdenum alloys were analyzed after thermal deformation,and the constitutive equations of the uranium-molybdenum alloys and the processing map were established.The results show that the true stress of uranium-molybdenum alloy increases with the true strain and then tends to be stabilized,and a dual-phase organization of α-U and Mo2Ux phases is formed in uranium-molybdenum alloy after thermal deformation.The activation energy of uranium-molybdenum alloy during thermal deformation is about 590.4 kJ/mol.The constitutive equations and the processing map of the alloy which are consistent with practice were constructed with peak stress and strain rate and temperature.关键词
铀钼合金/热变形/温度/应变速率Key words
uranium-molybdenum alloy/thermal deformation/temperature/strain rate分类
能源科技引用本文复制引用
胡秉坤,李明阳,何亚斌,杜艳华..利用压缩实验研究铀钼合金热变形行为[J].原子能科学技术,2025,59(4):884-890,7.
