陈则,范吉富,熊伟,赵冰冰,董显平

• 1:上海交通大学材料科学与工程学院
• 2:华能玉环电厂

摘要(Abstract)：

采用SEM、TEM及高温蠕变测试等实验方法,研究了某电厂锅炉四级过热器出口用T122管材服役前和在585~610℃服役56000 h后的组织和力学性能。结果表明:经过长时间高温服役后,T122管材的板条马氏体组织索氏体化严重,析出相聚集、长大明显,力学性能也出现较大程度下降,高温蠕变曲线及Larson-Miller参数预示服役后的管材寿命急剧缩短;考虑到T122管材服役过程中组织劣化严重,剩余服役寿命的预测并不能完全依赖于有限时间内的高温蠕变试验。

关键词(KeyWords)： T122钢;服役;析出相;组织演变;高温蠕变

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金青年科学基金(51501114);; 华能国际科研项目(HNKJ13-G16)

作者(Author): 陈则,范吉富,熊伟,赵冰冰,董显平

DOI: 10.13289/j.issn.1009-6264.2017-0153

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