金属热处理 ›› 2024, Vol. 49 ›› Issue (1): 234-241.DOI: 10.13251/j.issn.0254-6051.2024.01.038

• 工艺研究 • 上一篇    下一篇

蒸汽氧化T-250钢的力学性能和耐蚀性能

张小娟1, 王军喜1, 白鹭1, 周钟平1, 倪林彧1, 赵雨薇2, 闵永安2   

  1. 1. 上海航天动力技术研究所, 上海 201109;
    2. 上海大学 材料科学与工程学院 省部共建高品质特殊钢冶金与制备国家重点实验室, 上海 200444
  • 收稿日期:2023-08-18 修回日期:2023-11-27 发布日期:2024-02-29
  • 作者简介:张小娟(1987—),女,高级工程师,硕士,主要研究方向为金属材料及其热处理,E-mail: 20926061@zju.edu.cn

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

摘要: 将蒸汽氧化处理及空气氧化处理后的T-250钢进行拉伸、电化学极化曲线、湿热、盐雾等试验测试,探究蒸汽氧化对T-250钢抗拉强度及伸长率等力学性能及不同环境下耐蚀性能的影响。结果表明,经蒸汽氧化处理的T-250钢具有良好的力学性能,强度能够达到1700 MPa以上,且相较于空气氧化处理具有更优良的隔绝腐蚀效果,未出现蒸汽引起的氢致延迟断裂现象。

关键词: T-250钢, 蒸汽氧化, 氧化膜, 力学性能, 耐蚀性能

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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