理化检验-物理分册2026，Vol.62Issue(4)：27-30,4.DOI:10.11973/lhjy-wl250241
09MnNiDR钢临氢压力容器短时超温后的检验方法
Inspection method of 09MnNiDR steel hydrogen pressure vessel after short-time overtemperature
摘要
Abstract
Under the conditions of temperature of 530℃,hydrogen partial pressure of 1.3 MPa and duration of 1 h,a short-term overtemperature accident occurred in a 09MnNiDR steel pressure vessel.Based on the diffusion calculation method for carbon atoms and hydrogen atoms,combined with metallographic examination and hardness test,a rapid inspection method for hydrogen pressure vessels after short-term overtemperature was proposed.The results show that under the overtemperature condition,the grain of the material did not coarsen,the grain boundary did not crack,the surface did not decarbonize obviously,and the hardness of the material remained within the safe range.No over-standard defects were found in the overtemperature part,indicating that the equipment could still be operated safely.This method could provide a reference evaluation scheme for the damage assessment of high-temperature short-term overtemperature hydrogen equipment,especially in areas where conventional testing couldnot be performed due to conditional constraints(such as limited space).关键词
临氢压力容器/高温氢腐蚀/脱碳/蠕变损伤评估/扩散深度计算Key words
hydrogen pressure vessel/high temperature hydrogen corrosion/decarbonization/creep damage assessment/diffusion depth calculation分类
通用工业技术引用本文复制引用
陈东琼,傅如闻,李绪丰,胡华胜,孙杰..09MnNiDR钢临氢压力容器短时超温后的检验方法[J].理化检验-物理分册,2026,62(4):27-30,4.基金项目
广东省市场监督管理局科技项目(2024CT05) （2024CT05）
