通过原位衍射研究高温 KCl 诱导的高铬和高镍合金腐蚀

IF 1.6 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-05-18 DOI:10.1002/maco.202314224

Phillip Kingsbery, Anna M. Manzoni, P. Suarez Ocaño, D. M. Többens, C. Stephan-Scherb

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摘要

利用 X 射线衍射对实验室空气中 KCl 引发的高温腐蚀进行了现场观察。在高含铬模型合金（Fe-13Cr、Fe-18Cr-12Ni 和 Fe-25Cr-20Ni）上涂上氯化钾，并将其暴露在 560°C 的干燥空气中。不含 KCl 的合金在等效气氛中作为参照物进行研究。暴露在不含 KCl 的环境中后，所有合金都形成了非常薄的氧化层，这表明合金具有良好的耐腐蚀性。相比之下，含 KCl 的合金在暴露后出现了明显的损坏。

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High-temperature KCl-induced corrosion of high Cr and Ni alloys investigated by in-situ diffraction

High-temperature KCl-induced corrosion in laboratory air was observed in situ utilizing X-ray diffraction. High Cr-containing model alloys (Fe-13Cr, Fe-18Cr-12Ni, and Fe-25Cr-20Ni) were coated with KCl and exposed to dry air at 560°C. KCl-free alloys were studied in the equivalent atmosphere as a reference. After exposure to KCl-free environments, all alloys showed the formation of very thin oxide layers, indicating good corrosion resistance. In contrast, KCl-bearing alloys showed distinct damage after exposure.

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来源期刊

Materials and Corrosion-werkstoffe Und Korrosion 工程技术-材料科学：综合

CiteScore

3.70

自引率

11.10%

发文量

199

审稿时长

1.4 months

期刊介绍： Materials and Corrosion is the leading European journal in its field, providing rapid and comprehensive coverage of the subject and specifically highlighting the increasing importance of corrosion research and prevention. Several sections exclusive to Materials and Corrosion bring you closer to the current events in the field of corrosion research and add to the impact this journal can make on your work.

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