杜宝帅,魏玉忠,张忠文,李新梅,刘睿

• 1:国网山东省电力公司电力科学研究院
• 2:华电邹县发电有限公司
• 3:山东大学材料液固结构演变与加工教育部重点实验室

摘要(Abstract)：

采用X射线衍射分析仪、光学显微镜、扫描电镜、透射电镜及拉伸、弯曲力学性能试验对高温服役4.2万小时超超临界机组用HR3C钢的微观组织与力学性能进行了测试表征。结果表明,高温服役后HR3C钢中形成了Cr Nb N,M23C6,Nb(C,N)析出相,受热力学驱动和动力学生长因素影响,各析出相具有不同的数量、形态和分布特征。由于服役过程中形成的析出相的影响,高温服役后HR3C钢塑韧性明显降低,表现时效脆化倾向。

关键词(KeyWords)： 超超临界机组;HR3C钢;组织;性能

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 杜宝帅,魏玉忠,张忠文,李新梅,刘睿

DOI: 10.13289/j.issn.1009-6264.2014.12.016

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