理化检验-物理分册2025，Vol.61Issue(10)：23-28,6.DOI:10.11973/lhjy-wl250131
P92钢服役过程的磁巴克豪森噪声
Magnetic Barkhausen noise of P92 steel in service
摘要
Abstract
Using methods such as magnetic Barkhausen noise(MBN)analysis,scanning electron microscopy analysis and mechanical property testing,the magnetic properties,microstructure and mechanical properties of P92 steel with different service durations were analyzed,and the effects of service time and microstructure changes on MBN signals were studied.The results show that during the service process of P92 steel,the MBN signal changes significantly.As the service time increased,the MBN signal first remained stable,and after serving for 30 000 hours,the MBN signal rapidly increased.The precipitation and coarsening of precipitated phases during service were the main reasons for changes in MBN signals,especially the size of Laves phase,which had a significant correlation with MBN signals.When P92 heat-resistant steel was in service for 30 000 hours,its high-temperature mechanical properties significantly decreased,followed by a slow decline thereafter.The MBN signal increased with the decrease of tensile strength,and the sensitivity of MBN signal changes was higher than that of mechanical property changes.关键词
磁巴克豪森噪声/P92钢/析出相/服役时间/力学性能Key words
magnetic Barkhausen noise/P92 steel/precipitated phase/service time/mechanical property分类
通用工业技术引用本文复制引用
钱王洁,刘向兵,金晓,徐超亮,李远飞,贾文清,尹建,全琪炜,武焕春..P92钢服役过程的磁巴克豪森噪声[J].理化检验-物理分册,2025,61(10):23-28,6.基金项目
国家重点研发计划项目(2021YFA1600903) （2021YFA1600903）
国家自然科学基金项目(U24B2013) （U24B2013）
