Research Progress on Intergranular Corrosion Resistance of Super304H Austenite Stainless Steel

张春雷; 熊夏华; 郑志军; 钟飞; 高岩

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Research Progress on Intergranular Corrosion Resistance of Super304H Austenite Stainless Steel

更新时间：2026-01-21

- Research Progress on Intergranular Corrosion Resistance of Super304H Austenite Stainless Steel
- Special Steel Vol. 34, Issue 3, Pages: 34-38(2013)
- 作者机构：
  
  1. 广东电网公司电力科学研究院,广州,510600
  2. 华南理工大学材料科学与工程学院,广州,510640
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：26 December 2012，
  
  Online First：17 September 2022，
  
  Published：17 September 2013
- 稿件说明：
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张春雷, 熊夏华, 郑志军, et al. Research Progress on Intergranular Corrosion Resistance of Super304H Austenite Stainless Steel[J]. Special Steel, 2013, 34(3): 34-38.
DOI：

张春雷, 熊夏华, 郑志军, et al. Research Progress on Intergranular Corrosion Resistance of Super304H Austenite Stainless Steel[J]. Special Steel, 2013, 34(3): 34-38. DOI：

摘要

Super304H奥氏体不锈钢(0.10C-18Cr-9Ni-3Cu-0.4Nb-0.08N)为超超临界机组过热器和再热器的首选材料之一

由于该钢含碳较高

服役温度(～650℃)为M

沿晶界析出的敏化温度

如何避免晶间腐蚀发生是Super304H钢主要研究课题。本文综述了国内外Super304H钢晶间腐蚀倾向的研究进展

包括晶间腐蚀机理

钢中合金元素特别是Nb/C

双固溶处理、稳定化处理

焊接工艺、600～700℃高温时效对该钢晶间腐蚀的影响和Super304H钢晶间腐蚀敏感性的表征方式。展望了Super304H钢的研究方向。

Abstract

The Super304H austenite stainless steel (0. 10C-18Cr-9Ni-3Cu-0. 4Nb- 0. 08N) is one of first selected materials for superheater and reheater tubes of ultra-supercritical unit. As the steel has higher carbon content and its service temperature ( ~ 650 °C ) is the sensitizing temperature of M

precipitating along grain boundary

how to avoid the occurrence of intergranular corrosion is a main research topic for Super304H steel. The research progress for intergranular corrosion susceptibility of Super304H steel at home and abroad is summarized in this article including intergranular corrosion mechanism

effect of alloy elements in steel especially Nb/C

double solid-solution treatment

stabilizing treatment

welding process and 600 ~ 700 ℃ high temperature aging on intergranular corrosion of this steel

and characterization methods for sensitiveness of i

ntergranular corrosion of Super304H steel. The research and development of Super304H steel is prospected.

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