岳增武,李辛庚

• 1:山东电力研究院

摘要(Abstract)：

在650℃的水蒸气中对喷丸处理和未经喷丸处理的TP304H钢和Super304H钢的氧化行为进行了研究。使用GIXRD,SEM和EDX对氧化膜进行了分析。结果表明,喷丸使TP304H和Super304钢的抗氧化性能显著提高。TP304H钢经喷丸处理后提高抗氧化性能的效果优于Super304H钢。喷丸在奥氏体钢表面产生的超细晶粒和滑移带促进了Cr向表面扩散并形成富Cr的氧化物。喷丸诱发的马氏体对Cr的扩散及氧化行为也起着重要作用。对经内壁喷丸处理和未处理的TP304H钢制成的锅炉再热器管,在实际工况下服役7474 h后,经过内壁喷丸处理的TP304H钢管,内壁氧化膜的厚度只有未喷丸管子氧化膜厚度的约3%。实验室短期试验及实际应用均表明,传统钢材TP304H制成的锅炉管,内壁进行喷丸处理是提高抗水蒸气氧化性能的有效途径。

关键词(KeyWords)： TP304H钢;Super304H钢;喷丸;马氏体;氧化

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 岳增武,李辛庚

DOI: 10.13289/j.issn.1009-6264.2013.01.027

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