Test data for low cycle fatigue - strain control on material ALLOY 800H - sj at 850 Celsius

The creep rupture data in this collection were determined for the high temperature reactor projects (the direct cycle helium turbine project, the nuclear process heat project and the district heating project) of the Federal Republic of Germany and the State of North Rhine Westphalia, the aim being to qualify the candidate constructional alloys for service at temperatures up to 950°C. Several batches of each alloy were investigated and special attention was given to the effects of the service environments (helium containing different impurity gases, such as hydrogen, water vapour, carbon monoxide and methane, all at microbar levels, and methane reforming gas mixture) on the properties. In the test machines, these test environments led to carburisation of test pieces. However, analysis of the data showed that the stress rupture data for tests in air, in impure helium and in methane reforming gas lay in the same scatterband at each temperatures tested.

The data were used for the formulation of draft nuclear design rules for the high temperature reactor systems, which are summarised in 'Proceedings of the Workshop on Structural Design Criteria for HTR', G Breitbach, F Schubert, H Nickel, Jül-Conf-71, April 1989, Berichte der Kernforschungsanlage Jülich GmbH, ISSN 0344-5798.

本数据集收录的蠕变断裂数据，源于德意志联邦共和国与北莱茵-威斯特伐利亚州的高温反应堆项目（含直接循环氦气轮机项目、核工艺热项目及区域供热项目），旨在对可在最高950℃工况下服役的候选结构合金开展合格性评定。研究团队对每种合金的多个批次进行了测试，并重点关注服役环境对合金性能的影响：测试环境涵盖含微量杂质气体（氢、水蒸气、一氧化碳及甲烷，分压均达微巴级别）的氦气，以及甲烷重整混合气体。试验过程中，上述测试环境会引发试样渗碳现象。但数据分析结果表明，在各测试温度下，空气、不纯氦气与甲烷重整气体环境下的应力断裂数据均处于同一数据散布带内。

本数据集已用于高温反应堆系统核设计规范草案的编制，相关内容总结于"Proceedings of the Workshop on Structural Design Criteria for HTR"，作者为G Breitbach、F Schubert、H Nickel，会议编号Jül-Conf-71，出版于1989年4月，由于利希核研究中心有限公司（Berichte der Kernforschungsanlage Jülich GmbH）发行，国际标准刊号ISSN 0344-5798。