Heat Treatment of Metals ›› 2024, Vol. 49 ›› Issue (1): 234-241.DOI: 10.13251/j.issn.0254-6051.2024.01.038

• PROCESS RESEARCH • Previous Articles     Next Articles

Mechanical properties and corrosion resistance of steam oxidized T-250 steel

Zhang Xiaojuan1, Wang Junxi1, Bai Lu1, Zhou Zhongping1, Ni Linyu1, Zhao Yuwei2, Min Yongan2   

  1. 1. Shanghai Aerospace Power Technology Research Institute, Shanghai 201109, China;
    2. State Key Laboratory of Advanced Special Steel, School of Materials Science & Engineering, Shanghai University, Shanghai 200444, China
  • Received:2023-08-18 Revised:2023-11-27 Published:2024-02-29

Abstract: T-250 steel after steam oxidation treatment and air oxidation treatment was tested by tensile, electrochemical polarization curve, damp heat, salt spray and other tests to explore the effect of steam oxidation on mechanical properties, such as tensile strength and elongation of the T-250 steel and its corrosion resistance in different environments. The results show that the T-250 steel treated by steam oxidation has good mechanical properties and better corrosion isolation effect than that treated by air oxidation, without obvious hydrogen induced delayed fracture caused by steam.

Key words: T-250 steel, steam oxidation, oxide film, mechanical properties, corrosion resistance

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