期刊论文

Research Progress on Corrosion of Ni-Based Alloy in Molten Fluorine Salt of Molten Salt Reactor

Qiu, Changjun(qiuchangjun106@126.com)

中文

材料导报

1005-023X

2019

33

11

1813-1820

10.11896/cldb.18080069

湖南省教育厅省重点实验室开放基金(15K108) 国家自然科学基金(51474130) 青海省重大科技专项(2017-GX-A3).

本校为第一机构

熔盐堆(Molten salt reactor,MSR)是第四代先进核反应堆中唯一的液态燃料反应堆,因在热转化效率、中子经济性、固有安全性、在线燃料循环、核废料处理等方面具有无可比拟的优势而备受国内外研究者的关注。熔盐的选择对MSR 的运行安全及效率至关重要。熔融氟化盐如 LiF-BeF_2(FLiBe)、LiF-NaF-KF(FLiNaK)等具有较小的热中子吸收截面、高热导率、高比热容、良好的流动性、低的蒸气压(高温时)、良好的高温稳定性等一系列优异的热物化性能,被公认为MSR 最理想的冷却剂和核燃料载体。目前,国内外均选用镍基合金作为MSR 的主要结构材料。然而,超强高温腐蚀性熔融氟盐的存在对镍基合金提出了苛刻的要求...

Molten salt reactor (MSR) is the only liquid fueled one in the Generation IV of advanced nuclear reactors, which has attracted worldwide attention due to its incomparable advantages in thermal conversion efficiency, neutron economy, inherent safety, online fuel cycle and nuclear waste treatment. The choice of molten salt is crucial to the operation safety and efficiency of MSR. Fluoride molten salts such as LiF-BeF2 (FLiBe) and LiF-NaF-KF (FLiNaK) have a series of excellent thermal physicochemical properties such as small cross section for ther...