High cycle fatigue test data for A-286 ph sa material at 20 °C

The FP7 project "In Space Propulsion 1" was set up to improve the fundamental knowledge and the techniques which are necessary to allow Europe to implement new ambitious space programs involving cryogenic propulsion. It concentrates on liquid oxygen, liquid hydrogen, and liquid methane propellants, and the anticipated progress will address - LOX methane combustion - heat and propellant management - materials tribology, compatibility, and hydrogen embrittlement. The data included here were generated in the part of the project relating to hydrogen embrittlement. In a frist step, materials of interest were screened through a literature research and by carrying out tensile tests in gaseous hydrogen (GH2) and Ar. Finally, two alloys (Inconel 718 and A-286) were selected as being the most interesting for the actual test campaign. For these two materials the influence of hydrogen on the fatigue behaviour in High Cycle Fatigue (HCF) tests was studied in high pressure GH2 and Argon.

欧盟第七框架计划（FP7）“太空推进1号（In Space Propulsion 1）”项目旨在完善基础理论与关键技术体系，助力欧洲实施涉及低温推进（cryogenic propulsion）的高目标太空计划。项目聚焦液氧（LOX）、液氢及液甲烷三类推进剂，预期研究进展将涵盖以下方向：液氧-甲烷燃烧、热管理与推进剂管理、材料摩擦学、材料相容性及氢脆效应。本数据集收录的实验数据均源自该项目中氢脆效应相关的研究分支。研究初期，团队通过文献调研结合气态氢（GH2）与氩气（Ar）环境下的拉伸试验，对候选材料开展了初步筛选。最终，Inconel 718与A-286两种合金被选为正式测试工作的核心研究对象。针对这两种材料，团队开展了高压气态氢与氩气环境下的高周疲劳（HCF）试验，以探究氢对其疲劳性能的影响。