Abstract 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.

中文翻译：

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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

摘要 氦离子辐照加速镍基UNS N10003合金熔盐腐蚀，铬元素严重溶解。X射线吸收精细结构用于研究辐照对铬微化学的影响。在熔盐环境中，与腐蚀合金相比，辐照腐蚀合金中铬元素周围的相邻原子显着减少。特别地，检测到 Cr-O 和 Cr3+，表明形成了含 Cr(III) 的氧化物。这可以归因于辐照诱导了 Cr 原子周围的电子扩散和 Cr 的更多反应性，这表明辐照加速了原子尺度的腐蚀。