极端临氢环境金属材料力学性能数据库开发及应用

Design and application of database of the mechanical properties of metallic materials in extreme hydrogen environment

石化和氢能领域中高压氢系统承载件在制造残余影响、高压氢气和复杂载荷耦合作用下易发生氢致损伤。为确保高压氢系统长期、稳定、安全、可靠地运行,亟需为高压氢系统产品开发提供材料性能基础数据。本文从数据独立性和易扩展性方面入手,结合前期高压氢环境中材料实验数据(慢应变速率拉伸实验、断裂韧性实验和疲劳裂纹扩展实验),基于VB编程语言开发了高压氢环境金属材料力学性能数据库。结合国内外学者的研究对数据库应用进行了分析,展示了数据库收录金属材料氢脆数据的多面性和全面性。

In hydrogen energy,petroleum and chemical industries the bearing parts in high pressure hydrogen systems are prone to hydrogen-induced damage due to the coupling effect of manufacturing residual effects,high-pressure hydrogen and complicated loadings.In order to ensure long-term,stable,safe and reliable operations of the high-pressure hydrogen system,it is necessary to provide the data of material properties for the development of high-pressure hydrogen system products.Considering the independence and extendibility of data,a database for mechanical properties of metallic materials in high-pressure environment is developed with VB programming language.based on the materials data previously obtained in high-pressure hydrogen environments（slow strain rate tension test,fracture toughness test and fatigue crack propagation test）.The analysis of the database,which combines domestic and foreign researches and applications,has shown its versatility and comprehensiveness in terms of metal material hydrogen embrittlement data.