Corrosion Science ( IF 7.4 ) Pub Date : 2021-09-06 , DOI: 10.1016/j.corsci.2021.109779 A. Persdotter 1 , T. Boll 2, 3 , T. Jonsson 1
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High temperature corrosion remains a challenge for many high temperature applications. The corrosion resistance may be improved by the addition of minor amounts of reactive alloying elements. However, in the presence of corrosive species, such as alkali and chlorine, the corrosion rates are often highly accelerated. This study implements STEM/EDX and APT in order to shed light on a possible destructive minor element effect by investigating how the presence of minor amounts of corrosive species in the iron oxide formed on a low-alloyed steel may impair the corrosion resistance by increasing the oxide growth rate and possibly also reduce the oxide integrity.
中文翻译：
微量元素对低合金钢高温腐蚀的影响：通过原子探针断层扫描深入了解碱和氯引起的腐蚀
高温腐蚀仍然是许多高温应用的挑战。添加少量的活性合金元素可以提高耐腐蚀性。但是，在存在腐蚀性物质（例如碱和氯）的情况下，腐蚀速率通常会大大加快。本研究实施了 STEM/EDX 和 APT，通过研究低合金钢上形成的氧化铁中存在的少量腐蚀性物质如何通过增加耐腐蚀性来削弱耐腐蚀性，从而揭示可能的破坏性微量元素效应。氧化物生长速率，并可能降低氧化物完整性。
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