理化检验-物理分册2025，Vol.61Issue(1)：33-36,4.DOI:10.11973/lhjy-wl230317
在役电站主汽阀螺柱硬度抽检不合格原因
Reasons for unqualified hardness sampling inspection of main steam valve stud in in-service power station
摘要
Abstract
During the periodic inspection of the main steam valve stud of a 1 000 MW supercritical unit in a power generation company,it was found that the hardness was unqualified.The reasons for the unqualified hardness were analyzed by macroscopic observation,chemical composition analysis,mechanical property test,metallographic examination,scanning electron microscope and energy spectrum analysis.The results show that the stud had the problems of microstructure aging and carbide precipitation.Finally,suggestions for improvement were put forward to provide reference for similar unit problems.关键词
主汽阀螺柱/硬度偏低/检验检测/可用性分析/老化/碳化物析出Key words
main steam valve stud/low hardness/inspection and testing/usability analysis/aging/carbide precipitation分类
矿业与冶金引用本文复制引用
赵立,钟丰平,唐勇,胡建胜,应陈锴,余挺..在役电站主汽阀螺柱硬度抽检不合格原因[J].理化检验-物理分册,2025,61(1):33-36,4.基金项目
浙江省科技厅领雁计划(2022C01118) （2022C01118）
