Fireside Corrosion Behaviors of Super304H and HR3C in Coal Ash/Gas Environment with Different SO <Subscript>2</Subscript> Contents at 650?°C

Jintao Lu; Zhen Yang; Yan Li; Jinyang Huang; Yongli Zhou; Xinbao Zhao; Yong Yuan

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Fireside Corrosion Behaviors of Super304H and HR3C in Coal Ash/Gas Environment with Different SO 2 Contents at 650?°C

机译：Super304H和HR3C的壁式腐蚀行为在煤灰/气体环境中的不同SO <下标> 2 含量为650？°C

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The corrosion behaviors of Super304H and HR3C used for USC boiler applications were investigated in simulated coal ash/gas environments with 0.1 and 1.5% of SO~(2)at 650?°C for 500?h. The results indicated that the increase in SO~(2)accelerated the corrosion rate and the spalling tendency of the corrosion layer in both tested alloys. Fe~(2)O~(3), Cr~(2)O~(3)and FeCr~(2)O~(4)main peaks were revealed by XRD on Super304H, but on HR3C only the Cr~(2)O~(3)peak showed a high intensity. The SO~(2)content did not affect the corrosion product composition of any of the alloys, but accelerated the inner sulfidation and the spallation on Super304H. No obvious internal sulfidation was observed on HR3C in either SO~(2)content. Based on the experimental results, the alloy corrosion mechanism and the influence of sulfur content on the corrosion process were discussed.

机译：用于USC锅炉应用的Super304H和HR3C的腐蚀行为在模拟的煤灰/气体环境中研究了0.1和1.5％，在650℃下为500Ω℃。结果表明，如此〜（2）的增加加速了两种测试合金中腐蚀层的腐蚀速率和剥落趋势。 Fe〜（2）O〜（3），Cr〜（2）o〜（3）和FECR〜（2）O〜（4）主峰由Super304h上的XRD揭示，但在HR3C仅CR〜（2 ）O〜（3）峰值显示出高强度。所以〜（2）含量不影响任何合金的腐蚀产品组合物，而是加速了内硫化和超级304h上的介质。在HR3C中没有明显的内部硫化，如此〜（2）含量。基于实验结果，讨论了合金腐蚀机理及硫含量对腐蚀过程的影响。

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来源
《Journal of Materials Engineering and Performance》 |2018年第6期|共8页
作者
Jintao Lu; Zhen Yang; Yan Li; Jinyang Huang; Yongli Zhou; Xinbao Zhao; Yong Yuan;
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作者单位

National Engineering Research Center of Clean Coal Combustion for Utility Boilers Xi’an Thermal Power Research Institute Co. Ltd.;

National Engineering Research Center of Clean Coal Combustion for Utility Boilers Xi’an Thermal Power Research Institute Co. Ltd.;

Xi’an University of Science and Technology College of Materials Science and Engineering;

National Engineering Research Center of Clean Coal Combustion for Utility Boilers Xi’an Thermal Power Research Institute Co. Ltd.;

National Engineering Research Center of Clean Coal Combustion for Utility Boilers Xi’an Thermal Power Research Institute Co. Ltd.;

National Engineering Research Center of Clean Coal Combustion for Utility Boilers Xi’an Thermal Power Research Institute Co. Ltd.;

National Engineering Research Center of Clean Coal Combustion for Utility Boilers Xi’an Thermal Power Research Institute Co. Ltd.;

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原文格式 PDF
正文语种 eng
中图分类金属学与金属工艺;工程材料学;
关键词
boiler; coal ash; corrosion; stainless steel; sulfur content;

机译：锅炉;煤灰;腐蚀;不锈钢;硫含量;

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机译：Super304H和HR3C的壁式腐蚀行为在煤灰/气体环境中的不同SO <下标> 2 含量为650？°C
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机译：<！[CDATA [CDATA [多相PEO的腐蚀保护性能的调查（MG <下标> 2 SIO <下标>，MgO，MgA，MgAL <下标> 2 O <下标> 4 < /下标>）在铝酸盐 - 硅酸盐的混合物电解质中形成的Mg合金涂层]]>
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Fireside Corrosion Behaviors of Super304H and HR3C in Coal Ash/Gas Environment with Different SO 2 Contents at 650?°C

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