Fabrication and characterization of novel high-efficiency and high-durability neutron-absorbing Ni-based alloys

IF 2.3 2区物理与天体物理 Q1 NUCLEAR SCIENCE & TECHNOLOGY Nuclear Materials and Energy Pub Date : 2024-10-12 DOI:10.1016/j.nme.2024.101768

Jie Pan , Ao Liu , Chundong Wang , Jun Li , Zhaoyu Wu , Xueshan Xiao

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Abstract

New neutron-absorbing Ni-based functional alloys that depend on the gadolinium and dysprosium neutron absorption units were fabricated using vacuum induction melting. The effects of Gd and Dy contents on the microstructure characteristics and properties of Ni-based alloys were investigated. Adding Gd, Dy, and Gd + Dy into Ni-based alloys formed Ni₅Gd, Ni₅Dy and Ni₅(Gd,Dy), respectively, and their volume fraction increased with increasing of Gd/Dy content. Different type of elements, Gd or Dy, had no obvious influence on mechanical properties and corrosion resistance, while the amount of Gd and Dy elements played an important role. The shielding properties were calculated by the Monte Carlo method, and the alloys possessed high efficiency and high durability performance due to the high contents of Gd and Dy elements. The developed alloys are expected to be good functional materials for use in the field of nuclear shielding.

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新型高效、高耐久性中子吸收镍基合金的制造与表征

利用真空感应熔炼技术制造了依赖于钆和镝中子吸收单元的新型中子吸收镍基功能合金。研究了钆和镝含量对镍基合金微观结构特征和性能的影响。在镍基合金中加入 Gd、Dy 和 Gd + Dy 分别形成 Ni5Gd、Ni5Dy 和 Ni5(Gd,Dy)，并且它们的体积分数随着 Gd/Dy 含量的增加而增加。不同类型的 Gd 或 Dy 元素对力学性能和耐腐蚀性能没有明显影响，而 Gd 和 Dy 元素的含量则起着重要作用。通过蒙特卡洛法计算得出的屏蔽性能表明，由于 Gd 和 Dy 元素含量较高，合金具有高效率和高耐久性能。所开发的合金有望成为核屏蔽领域使用的良好功能材料。

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来源期刊

Nuclear Materials and Energy Materials Science-Materials Science (miscellaneous)

CiteScore

3.70

自引率

15.40%

发文量

175

审稿时长

20 weeks

期刊介绍： The open-access journal Nuclear Materials and Energy is devoted to the growing field of research for material application in the production of nuclear energy. Nuclear Materials and Energy publishes original research articles of up to 6 pages in length.