Experimental study on high temperature corrosion of T92 steel used for superheater of ultra supercritical unit boilers

YUAN Zhou; LI Jiansan; WEI Haitong; QIN Yuansi

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Experimental study on high temperature corrosion of T92 steel used for superheater of ultra supercritical unit boilers

Thermal Power Generation Issue 10, (2017)

更新时间：2025-09-28

- Experimental study on high temperature corrosion of T92 steel used for superheater of ultra supercritical unit boilers
- 作者机构：
  
  华南理工大学机械与汽车工程学院,广东,广州,510640
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK224.1
- Published Online：01 November 2017，
  
  Published：2017
- 稿件说明：
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YUAN Zhou, LI Jiansan, WEI Haitong, et al. Experimental study on high temperature corrosion of T92 steel used for superheater of ultra supercritical unit boilers[J]. Thermal Power Generation, 2017, (10).
DOI：

YUAN Zhou, LI Jiansan, WEI Haitong, et al. Experimental study on high temperature corrosion of T92 steel used for superheater of ultra supercritical unit boilers[J]. Thermal Power Generation, 2017, (10). DOI：

摘要

以超超临界机组锅炉高温过热器用耐热钢T92为研究对象，考虑了过热器工作过程中的应力因素，采取螺栓预紧方式对C型试样施加应力，然后涂盐进行高温腐蚀试验。结果表明：700 ℃下复合硫酸盐的熔融与挥发在一定程度上影响了T92钢涂盐试样的高温腐蚀行为；未加载应力时，700 ℃下T92钢腐蚀以高温氧化为主；加载应力时，700 ℃下应力能加快涂盐T92钢的腐蚀速度。对于大型锅炉过热器的T92钢管道，运行过程中需注意其应力变化对高温作业的影响。

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