Radiation-induced changes in the structure and mechanical properties of Fe–Mo alloy under electron irradiation

被引:3
作者
Tsepelev A.B. [1 ,2 ]
Ilyushin A.S. [3 ]
Kiseleva T.Y. [3 ]
Brovkina E.A. [3 ]
Melnikov V.N. [1 ]
机构
[1] Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow
[2] National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow
[3] Faculty of Physics, Moscow State University, Moscow
关键词
electron irradiation; Fe–Mo alloy; radiation softening; solid solution; structure and phase transformations;
D O I
10.1134/S2075113317030236
中图分类号
学科分类号
摘要
The X-ray diffraction method is used to study radiation-induced changes in the structure and phase state of a model Fe–5% Mo alloy after electron irradiation at room temperature and 400°C. The observed radiation-induced softening of the alloy is explained by a decrease in the Mo concentration in solid solution and an increase in the number of lattice defects. This conclusion is confirmed by the shift of the 200 diffraction maximum toward larger angles and its broadening. Irradiation leads to the oxidation of the alloy, and additional annealing at 400°C causes the formation of spinel Fe2MoO4 and alloy strengthening. © 2017, Pleiades Publishing, Ltd.
引用
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页码:378 / 381
页数:3
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