高压物理学报2024，Vol.38Issue(3)：139-148,10.DOI:10.11858/gywlxb.20230813
热腐蚀和热冲击下炭化釜Q245R钢本构关系的研究
Constitutive Relationship of Q245R Steel of Carbonization Kettle under Thermal Corrosion and Thermal Shocking
摘要
Abstract
An electrochemical accelerated corrosion test was conducted on the Q245R steel sample to simulate the actual corrosion conditions of the carbonization kettle.It was found that corrosion not only causes changes in geometric dimensions,but also causes degradation of the material's mechanical properties.Tensile tests were conducted on Q235R steel materials at different temperatures,corrosion rates,and strain rates(low strain rate of 10-3-1 s-1,medium strain rate of 10-102 s-1,and high strain rate of 103 s-1).A fitting method was carried out based on the modified Johnson-Cook constitutive equation and MATLAB software,which provides the relationship between its characteristic strength,heat treatment temperature and corrosion rate.According to the results,it can be seen that the fitting curve is in good agreement with the experimental curve.关键词
炭化釜/Q245R钢/腐蚀/Johnson-Cook本构方程Key words
carbonization kettle/Q245R steel/corrosion/Johnson-Cook constitutive equation分类
数理科学引用本文复制引用
刘志远,陈文飞,谢作然,蒋昊成,李进,朱珏..热腐蚀和热冲击下炭化釜Q245R钢本构关系的研究[J].高压物理学报,2024,38(3):139-148,10.基金项目
国家自然科学基金(11972203,11572162) （11972203,11572162）
宁波市自然科学基金(202003N4152) （202003N4152）
