Microstructure and mechanical properties of neutron irradiated V-20Ti alloy
Microstructure and mechanical properties of neutron irradiated V-20Ti alloy
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中子辐照V-20Ti合金的显微组织与力学性能
DOI：
10.1016/0022-3115(85)90231-4
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发表时间：
1985
影响因子：
3.1
通讯作者：
S. Morozumi
中科院分区：
文献类型：
--
作者：
Yasuhiro Higashiguchi;H. Kayano;S. Morozumi
研究了5× 10 24 、2× 10 24 和1× 10 23 nm-2 (E>l MeV)三种不同能量密度的V-20Ti合金的中子辐照损伤及其对力学性能的影响，分别命名为A-、B-和C-试样。在 A 和 B 样本中观察到辐射诱导沉淀物 (RIP)，并且所有样本中均未出现空隙。通过详细研究可以清楚地看出，沉淀物是位于（100）平面上的圆形平面相干颗粒，并且具有电荷结构。基于与辐射诱导析出物（RIP）的关系，提出了抑制空隙形成和软化辐照对机械性能影响的机制，辐射诱导析出物被认为是非化学计量的低氧化物，并且在晶格位点包含许多空位。
Neutron irradiation damage and its effects on mechanical properties were studied for V-20Ti alloy with three different fluences: 5× 10 24, 2× 10 24 and 1× 10 23 nm-2 (E> l MeV), named A-, B-and C-specimens, respectively. Radiation-induced precipitates (RIP) were observed in A and B specimens and no voids in all specimens. It was clear from the detailed investigation that the precipitates are circular and planar coherent particles lying on (100) planes and have the fee structures. The mechanisms for suppression of void formation and for softening the irradiation effects on the mechanical properties were suggested based on the relation with radiation-induced precipitates (RIP) which were considered as a non-stoichiometric suboxide and contained many vacancies at lattice sites.