理化检验-物理分册2025，Vol.61Issue(7)：16-22,31,8.DOI:10.11973/lhjy-wl240124
服役粗晶Super304H与TP347HFG钢管剩余寿命预测
Residual life prediction of coarse-grained Super304H and TP347HFG steel tubes in service
摘要
Abstract
Coarse grained samples were prepared by pre-stretching and solid solution treatment,and then isothermal aging was carried out on the samples.The microstructure and hardness changes of Super304H and TP347HFG steel pipes with abnormal austenite grain growth were simulated and studied,and the remaining service life was predicted.The results show that the average austenite grain size of the coarse-grained sample was grade 2 after pre-tensile deformation and solid solution treatment.During the isothermal aging process,the austenite grain size was basically unchanged,but the M23C6 phase particles continued to precipitate and became coarse,resulting in austenite grain boundary widening.The hardness of coarse-grained samples increased first and then decreased,then tended to be stable,and finally decreased rapidly and monotonously.Based on the hardness-P function method,a mathematical model for predicting the remaining service life of coarse-grained Super304H and TP347HFG steel tubes was established.关键词
Super304H钢管/TP347HFG钢管/奥氏体晶粒度/显微组织/硬度/剩余寿命预测Key words
Super304H steel pipe/TP347HFG steel pipe/austenite grain size/microstructure/hardness/residual life prediction分类
矿业与冶金引用本文复制引用
程翔,鲍峥,王若民,缪春辉,陈国宏,汤文明..服役粗晶Super304H与TP347HFG钢管剩余寿命预测[J].理化检验-物理分册,2025,61(7):16-22,31,8.基金项目
安徽新力电业科技咨询有限责任公司科技项目(2022咨-KJ-02) （2022咨-KJ-02）
