Waterlogged woods and iron reinforcements extracted from archaeological shipwrecks were studied. The corrosion mechanisms of the reinforcements were investigated by analyzing the corrosion products using a multi-technique approach. The woods contained pyrite and greigite. The reinforcements showing different degradation states were corroded into siderite, chukanovite, mackinawite, pyrite and greigite. Then, two half-nails were soaked in neutral and acidic Na₂S solutions. Mackinawite precipitated only in neutral conditions. Through this study, the natural mackinawite-to-pyrite evolution process induced by a long-term exposure to sulfides is highlighted. This work also shows that iron sulfides can result from complex processes implying other sulfide-sensitive phases.

研究了从考古沉船中提取的浸水木材和铁筋。通过使用多种技术方法分析腐蚀产物，研究了增强材料的腐蚀机理。树林中含有黄铁矿和钙铁矿。表现出不同降解状态的增强材料被腐蚀成菱铁矿，chukanovite，mackinawite，黄铁矿和greigite。然后，将两个半指甲浸入中性和酸性Na ₂ S溶液中。Mackinawite仅在中性条件下沉淀。通过这项研究，强调了长期暴露于硫化物引起的自然马氏体向黄铁矿的演化过程。这项工作还表明，硫化铁可能来自复杂的过程，这意味着其他对硫化物敏感的相。