【摘要】 ODS钢是第四代核能系统的重要候选材料，其优异性能源于基体中弥散分布的高密度超细氧化物粒子。但是在进行焊接时，这些氧化物粒子由于密度较小，很容易聚集，严重损害焊接接头的力学性能。焊接难题成为制约ODS钢工程应用的瓶颈之一。本文总结分析了目前ODS钢焊接的发展现状。主要介绍了氩弧焊、激光焊、电子束焊、电阻焊、扩散焊、搅拌摩擦焊6种焊接方式在ODS钢焊接领域的发展历史和最新研究进展，对不同焊接方式的焊缝尺寸大小、晶粒变化、弥散氧化物粒子分布情况等焊缝的显微组织，焊接中重要参数和焊后力学性能进行了系统的总结和对比。目前电阻焊、扩散焊和搅拌摩擦焊3种固态焊接方式显示出了较好的焊接结果，具有很大的潜力能够成为未来ODS钢在核电焊接领域的连接工艺。针对不同焊接方式的优缺点总结了几种焊接方式在未来发展中更适合的使用场景，并对其未来发展的方向进行了预测。更多还原

【Abstract】 ODS steel is an important candidate material for the fourth-generation nuclear energy system, and its excellent performance lies in the high-density ultrafine oxide particles dispersed in the matrix. However, during welding, these oxide particles are prone to aggregation due to their low density, which seriously damages the mechanical properties of the welded joint. The welding problem has become one of the bottlenecks restricting the engineering application of ODS steel. This article summarizes and analyzes the development status of ODS steel welding. The development history and latest research progress of six welding methods in the field of ODS steel welding, including argon arc welding, laser welding, electron beam welding, resistance welding, diffusion welding and friction stir welding, are introduced. The weld microstructure of different welding methods(including weld size, grain size changes, distribution of dispersed oxide particles, etc.), important parameters during welding and post weld mechanical properties are summarized and compared. At present, three solid-state welding methods, namely resistance welding, diffusion welding and friction stir welding, have shown good welding results and have great potential to become the connection process for ODS steel in the field of nuclear power welding in the future. Based on the advantages and disadvantages of different welding methods, several more suitable usage scenarios for future development are summarized, and their future development directions are predicted.更多还原