Safety Performance Assessment Strategies of P91 Steel Based on Leeb Hardness

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Li, Dengke^1 ; Hu, Sheng^1 ; Liu, Xing^2 ; Xie, Yi^1 ; Feng, Chao^1

State Grid Hunan Electric Power Corporation Research Institute, Changsha, Hunan

410007, China^1

State Grid Huaihua Power Supply Company, Huaihua, Hunan

418000, China^2

关键词: Analytical testing;    Brinell hardness;    Chemical composition analysis;    Low hardness;    Mechanical properties testing;    Metallographic examination;    Microstructure and mechanical properties;    Safety performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/3/032096/pdf
DOI  :  10.1088/1755-1315/295/3/032096

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A study on the low hardness problem of P91 steel was conducted in this paper by a variety of analytical testing methods, including hardness testing, chemical composition analysis, metallographic examination and mechanical properties testing. A significant discrepancy was revealed between the hardness HBHLD, which is converted from Leeb hardness, and Brinell hardness HB. The intrinsic correlation between hardness and metallographic microstructure and mechanical properties was then established. At last, we have concluded the safety performance assessment strategies of P91 steel based on Leeb hardness testing results.