Test data for uniaxial creep on material ALLOY 800H irr at 900 Celsius and a stress of 41.99 MPa (repeat test)

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（creep rupture data）是为德意志联邦共和国及北莱茵-威斯特法伦州的高温反应堆项目（包括直接循环氦气轮机项目、核工艺热项目和区域供热项目）测定的，旨在对候选结构合金进行合格性评定，以验证其在最高950°C温度下的服役能力。研究涵盖了每种合金的多个批次，并特别关注服役环境（含不同杂质气体的氦气，如氢、水蒸气、一氧化碳和甲烷——均为微巴级，以及甲烷重整气体混合物）对材料性能的影响。在试验机中，这些试验环境导致试样发生渗碳（carburisation）；但数据分析表明，在空气、不纯氦气和甲烷重整气体中开展的试验，其应力断裂数据（stress rupture data）在各测试温度下均处于同一分散带内。

这些数据被用于制定高温反应堆系统的核设计规则草案，该草案已总结于《高温反应堆结构设计准则研讨会论文集》（Proceedings of the Workshop on Structural Design Criteria for HTR），作者为G·布莱特巴赫（G Breitbach）、F·舒伯特（F Schubert）、H·尼克尔（H Nickel），会议编号Jül-Conf-71，1989年4月，刊载于于利希核研究中心报告（Berichte der Kernforschungsanlage Jülich GmbH），国际标准连续出版物编号（ISSN）0344-5798。