Abstract The preservation of archaeological iron artefacts necessitates stabilization treatments. For this study, such treatments were applied, in aerated and deaerated NaOH solutions, to Roman iron bars excavated from a marine site in order to understand the evolution of corrosion layers composed of ferrous hydroxychloride β-Fe2(OH)3Cl. Their transformation was monitored in situ by micro-diffraction under synchrotron radiation and characterized ex situ using multi-scale complementary analytical tools. The formation of transient phases such as ferrous hydroxide Fe(OH)2 was identified in both media and chlorinated green rust GR(Cl−) occurred in aerated solutions, showing the influence of dissolved oxygen on the transformation processes.

中文翻译：

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文物文物的稳定化处理 : 碱液脱氯海洋铁器原位监测

摘要 考古铁制品的保存需要稳定处理。在这项研究中，在充气和脱气的 NaOH 溶液中，将此类处理应用于从海洋遗址挖掘出的罗马铁棒，以了解由羟基氯化亚铁 β-Fe2(OH)3Cl 组成的腐蚀层的演变。在同步辐射下通过微衍射原位监测它们的转变，并使用多尺度互补分析工具在原位表征。在介质和氯化绿锈 GR(Cl−) 中都发现了诸如氢氧化亚铁 Fe(OH)2 等瞬态相的形成，这表明了溶解氧对转化过程的影响。