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Sulphidation of Low-Alloyed Steels Used in Power Industry
Oxidation of Metals ( IF 2.1 ) Pub Date : 2019-07-27 , DOI: 10.1007/s11085-019-09929-7
T. Dudziak , K. Jura , P. Dudek , L. Boroń , J. Rutkowska

This paper reports the results obtained from sulphidation tests on a low-alloyed steels 15HM (T/P12), 16M (T/P1), 18K and 10HM2 (T/P22) in the temperature range 450–550 °C for 100 h. Tests were conducted using a gas mixture of 1%H2S 99% Ar at 1 bar. The results indicate that the low-alloyed steels underwent a high degree of corrosion degradation due to the formation of an Fe1−XS scale. The scale thicknesses and chemical compositions of the scales formed on the exposed samples were analysed by means of standard techniques, including scanning electron microscopy coupled with energy X-ray dispersive spectroscopy. In addition, a phase diagram for the Fe–S system was calculated using FACTSAGE software to aid interpretation of the results. Based on the study conducted, relevant defect equations were proposed.

中文翻译:

电力工业用低合金钢的硫化

本文报告了对低合金钢 15HM (T/P12)、16M (T/P1)、18K 和 10HM2 (T/P22) 在 450–550 °C 的温度范围内进行 100 小时的硫化试验所获得的结果。测试是在 1 巴下使用 1% H2S 99% Ar 的气体混合物进行的。结果表明,由于形成了 Fe1-XS 氧化皮,低合金钢经历了高度的腐蚀退化。通过标准技术,包括结合能量X射线色散光谱的扫描电子显微镜,分析在暴露样品上形成的鳞片的鳞片厚度和化学成分。此外,使用 FACTSAGE 软件计算了 Fe-S 系统的相图以帮助解释结果。基于所进行的研究,提出了相关的缺陷方程。
更新日期:2019-07-27
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