Irradiation accelerated fluoride molten salt corrosion of nickel-based UNS N10003 alloy revealed by X-ray absorption fine structure
Irradiation accelerated fluoride molten salt corrosion of nickel-based UNS N10003 alloy revealed by X-ray absorption fine structure
复制标题
X射线吸收精细结构揭示镍基UNS N10003合金的辐照加速氟化物熔盐腐蚀
DOI：
10.1016/j.corsci.2019.108408
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发表时间：
2020
影响因子：
8.3
通讯作者：
Hefei Huang
中科院分区：
文献类型：
--
作者：
Guanhong Lei;Cheng Li;Zheng Jiang;Hefei Huang
氦离子辐照加速镍基UNS N10003合金熔盐腐蚀，导致铬元素严重溶解。采用x射线吸收精细结构研究辐照对铬微化学的影响。在熔盐环境下，与腐蚀合金相比，辐照腐蚀合金中铬元素周围的邻近原子明显减少。特别地，检测到Cr- o和Cr3+，表明形成了含Cr（III）的氧化物。这可能是由于辐照引起了Cr原子周围电子的扩散和Cr的反应性增强，表明辐照加速了原子尺度上的腐蚀。
Helium ion irradiation accelerating molten salt corrosion of nickel-based UNS N10003 alloy was noted for severely dissolving of chromium element. X-ray absorption fine structure was applied to investigate irradiation effect on chromium microchemistry. In molten salt environment, neighbor atoms around chromium element are significantly reduced in the irradiated & corroded alloy, compared with those in the corroded alloy. Specially, the Cr-O and Cr3+were detected, indicating the formation of Cr(III)-containing oxides. It can be ascribed to irradiation induced the diffusion of the electrons around the Cr atoms and more reactive of Cr, which revealed irradiation accelerating corrosion at atomic scale.