天然气与石油2025，Vol.43Issue(5)：74-82,9.DOI:10.3969/j.issn.1006-5539.2025.05.010
输氢管道用钢管的检测与评价方法
Testing and evaluation methods of steel pipes for hydrogen transmission pipelines
摘要
Abstract
Hydrogen exhibits extremely high permeability and typically degrades metal it comes into contact with.Test and evaluation methods for hydrogen-induced damage in materials have been developed at home and abroad,but the results often differ,or even contradict each one another,due to variations in hydrogen permeation methods,specimen types,test conditions,and testing procedures.This study reviews relevant testing and evaluation methods and testing data for steel pipes used in hydrogen transmission pipelines.Research findings indicate that different hydrogen charging conditions,specimen types,and other factors have a significant impact on the evaluation results of Slow Strain Rate Testing(SSRT).It is recommended that SSRT in a hydrogen environment should specify the specimen type and dimensions according to service conditions.Alternatively,specimens retaining the original surface may be used,and the strain rate range in tensile testing should be narrowed.The hydrogen environment has a significant impact on the plasticity and fatigue crack propagation rate of the metallic materials in contact with it.Appropriate fracture toughness indicators should be selected based on the type of metallic materials,with crack tip opening displacement being suitable for low-strength steel pipes.The fatigue characteristics of hydrogen transmission pipelines were calculated and acceptance criteria for indicators such as fatigue crack propagation rate and fatigue life were proposed based on actual operational pipelines.The study results provide reference for the pipeline construction.关键词
输氢管道/断裂韧度/疲劳寿命/氢环境/SSRTKey words
Hydrogen transmission pipelines/Fracture toughness/Fatigue life/Hydrogen environment/SSRT引用本文复制引用
孙宏..输氢管道用钢管的检测与评价方法[J].天然气与石油,2025,43(5):74-82,9.基金项目
河北省新能源产业技术创新专项"纯氢长输管道关键技术研究与应用示范"(22314601D) （22314601D）
