水蒸汽含量对SA213T91钢650 ℃氧化行为的影响

doi:1005-4537（2009）05-0349-04

中国腐蚀与防护学报

2009, Vol. 29

Issue (5): 349-352 DOI: 1005-4537（2009）05-0349-04

研究报告

本期目录 | 过刊浏览

水蒸汽含量对SA213T91钢650 ℃氧化行为的影响

张都清¹;徐敬军²

1．山东电力研究院济南 250002
2．中国科学院金属研究所沈阳材料科学国家（联合）实验室沈阳 110016

INFLUENCE OF STEAM CONTENT ON OXIDATION OF SA213T91 STEEL AT 650 ℃

ZHANG Duqing¹; XU Jingjun²

1. Shandong Electric Research Institute; Jinan 250013
2. Shenyang National Laboratory for Materials Science; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110016

全文: PDF(1143 KB)

摘要:

研究了ASME213 T91钢(T91钢)650 ℃下在(Ar+H₂O)气氛中不同含量的水蒸汽中的高温氧化行为。T91钢在5%、7% 和10% Ar+H₂O气氛中氧化10 h的氧化动力学曲线表明，在含5%H₂O气氛中氧化时，动力学符合抛物线规律，在其余两种浓度下氧化遵从分阶段抛物线规律。随水蒸汽含量的增大，氧化速度明显增大。在T91钢表面形成了多层结构的氧化膜。氧化膜组成从外到内依次为Fe₂O₃，Fe₃O₄ 和(Fe,Cr)₃O₄。探讨了不同含量的水蒸汽对T91钢氧化行为的影响机理.

关键词 ： SA213T91钢, 水蒸汽含量, 氧化

Abstract：

The steam oxidation of T91 steel exposed to the Ar+H₂O mixed atmosphere at 650 ℃ was investigated. The formed scales were successively composed of Fe₂O₃，Fe₃O₄ and (Fe,Cr)₃O₄ from the outer surface. The steam oxidation kinetics of T91 steel followed the parabolic law at the atmosphere with 5% steam and partially followed the parabolic law at the atmosphere with 7% and 10% steam. Increasing the steam content remarkably accelerated the steam oxidation rate of T91 steel. It was observed that the multilayer oxidation scales formed on the surface of T91 steel after exposed to the mixed atmosphere with 5\%、7% and 10% steam (vol.%) for 10 h. The effect of the steam contents in the mixed atmosphere on the oxidation mechanism of T91 steel was discussed.

Key words： T91 steel steam content oxidation

收稿日期: 2009-01-04

ZTFLH:

TG172

基金资助:

华电国际重点科技项目（58）

通讯作者: 张都清 E-mail: zhangduqing@163.com

Corresponding author: ZHANG Duqing E-mail: zhangduqing@163.com

作者简介: 张都清，男，1970年生，高级工程师，研究方向为电站金属材料高温性能

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引用本文:

张都清徐敬军. 水蒸汽含量对SA213T91钢650 ℃氧化行为的影响[J]. 中国腐蚀与防护学报, 2009, 29(5): 349-352.
ZHANG Dou-Qing. INFLUENCE OF STEAM CONTENT ON OXIDATION OF SA213T91 STEEL AT 650 ℃. J Chin Soc Corr Pro, 2009, 29(5): 349-352.

链接本文:

https://www.jcscp.org/CN/1005-4537（2009）05-0349-04 或 https://www.jcscp.org/CN/Y2009/V29/I5/349

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