Abstract The review summarizes the published data on the widely applied electron-beam, laser-beam, as well as resistance upset, projection, and spot welding of zirconium alloys for nuclear applications. It provides the results of their analysis to identify common patterns in this area. Great attention has been paid to the quality requirements, the edge preparation, up-to-date equipment, process parameters, as well as post-weld treatment and processing. Also, quality control and weld repair methods have been mentioned. Finally, conclusions have been drawn about a significant gap between the capabilities of advanced welding equipment to control the microstructure and, accordingly, the properties of welded joints of the zirconium alloys and existing algorithms that enable to realize them in the nuclear industry. Considering the ever-increasing demands on the high-burnup accident tolerant nuclear fuel assemblies, great efforts should be focused on the improving the welding procedures by implementing predefined heat input cycles. However, a lot of research is required, since the number of possible combinations of the zirconium alloys, designs and dimensions of the joints dramatically exceeds the quantity of published results on the effect of the welding parameters on the properties of the welds.

中文翻译：

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用于核应用的锆合金电阻、电子和激光束焊接：综述

摘要 该综述总结了已发表的有关核应用锆合金广泛应用的电子束、激光束以及电阻镦锻、投影和点焊的数据。它提供了他们的分析结果，以确定该领域的常见模式。对质量要求、边缘准备、最新设备、工艺参数以及焊后处理和加工给予了极大的关注。此外，还提到了质量控制和焊接修复方法。最后，得出的结论是，先进焊接设备控制微观结构的能力与锆合金焊接接头的性能以及能够在核工业中实现它们的现有算法之间存在显着差距。考虑到对高燃耗事故容忍核燃料组件的需求不断增加，应通过实施预定义的热输入循环来集中精力改进焊接程序。然而，需要进行大量研究，因为锆合金、设计和接头尺寸的可能组合数量大大超过了有关焊接参数对焊缝性能影响的已发表结果的数量。