Analysis of creep-fatigue crack growth behaviour in W-Eurofer97 brazed joints

对于未来聚变反应堆的发展，一种难熔金属(即，钨)必须连接到钢等结构材料上。这项合作研究的重点是寻找适合于钨与钢的钎焊的合金，并通过各种实验来评估它们的性能，如果可能的话，这些实验还辅之以有限元模拟。由于核聚变中的材料研究需要开发和测试用于测量辐照后材料性能的小样本，因此了解改变样本大小的影响和差异也是很有意义的。目前测量核钢蠕变裂纹扩展的实验方法也在试验中，以评估它们是否适用于在微型样品和复合微型样品中测量相同的性能。

For the development of future fusion reactors, a refractory metal (ie. tungsten) has to be joined to a structural material such as steel. The research conducted in collaboration focuses on finding alloys suitable for brazing tungsten to steel and evaluating their performance with various experiments which, when possible are complemented with finite element simulations. Since material research in nuclear fusion requires the development and testing of small specimen for measurement of material performance after irradiation, understanding the impact and differences of changing specimen size is also of interest. Current experimental procedures for measuring creep-crack growth in nuclear steels are also being experimented upon to assess whether they are suitable for measuring the same properties in miniature samples and composite miniature samples.